Java.Lang.UnsupportedOperationException: 'For encrypted files, please open the relevant FileInput/FileOutputStream.'

### Version Information

- Visual Studio version (eg. 16.8 or 8.8): 16.11.3
- Xamarin.Android version (eg. 11.1): 11.4.0.5
- Using AndroidX or Support Libraries:
Xamarin.Android.Support.Design 27.0.2.1
Xamarin.Android.Support.v4 27.0.2.1
Xamarin.Android.Support.v7.AppCompat 27.0.2.1
Xamarin.Android.Support.v7.CardView 27.0.2.1
Xamarin.Android.Support.v7.MediaRouter 27.0.2.1
Xamarin.AndroidX.AppCompat.Resources 1.1.0
Xamarin.AndroidX.Arch.Core.Runtime 2.1.0.8
Xamarin.AndroidX.Legacy.Support.V4 1.0.0.7
Xamarin.AndroidX.MediaRouter 1.2.4
Xamarin.AndroidX.Palette 1.0.07
Xamarin.AndroidX.Security.SecurityCrypto 1.0.0.3
- If Support Libraries, version (eg 28.0.0): 27.0.2.1

### Describe your Issue:
When trying to open encrypted stream to read file with `AndroidX.Security.Crypto.EncryptedFile.OpenFileInput()` exception Java.Lang.UnsupportedOperationException with message: 'For encrypted files, please open the relevant FileInput/FileOutputStream.' is thrown

### Steps to Reproduce (with link to sample solution if possible):
string masterKeyAlias = MasterKeys.GetOrCreate(MasterKeys.Aes256GcmSpec);
Java.IO.File file = new File(Android.App.Application.Context.FilesDir, Settings.Settings.DataFileName);
bool fileExists = file.Exists();
if (fileExists)
{
file.Delete();
}

AndroidX.Security.Crypto.EncryptedFile.Builder builder = new EncryptedFile.Builder(
file,
Android.App.Application.Context,
masterKeyAlias,
EncryptedFile.FileEncryptionScheme.Aes256GcmHkdf4kb);
AndroidX.Security.Crypto.EncryptedFile encryptedFile = builder.Build();

using (System.IO.Stream output = encryptedFile.OpenFileOutput())
{
await output.WriteAsync(Encoding.UTF8.GetBytes("Just sample text"));
}

using (System.IO.Stream input = encryptedFile.OpenFileInput())
{
int notReachable = input.ReadByte();
}

### Include any relevant Exception Stack traces, build logs, adb logs:

at Java.Interop.JniEnvironment+InstanceMethods.CallObjectMethod (Java.Interop.JniObjectReference instance, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x0006e] in :0
at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeVirtualObjectMethod (System.String encodedMember, Java.Interop.IJavaPeerable self, Java.Interop.JniArgumentValue* parameters) [0x0002a] in :0
at Java.IO.FileInputStream.get_Channel () [0x00000] in /Users/builder/azdo/_work/1/s/xamarin-android/src/Mono.Android/obj/Release/monoandroid10/android-30/mcw/Java.IO.FileInputStream.cs:160
at Android.Runtime.InputStreamInvoker..ctor (Java.IO.InputStream stream) [0x00025] in /Users/builder/azdo/_work/1/s/xamarin-android/src/Mono.Android/Android.Runtime/InputStreamInvoker.cs:21
at (wrapper remoting-invoke-with-check) Android.Runtime.InputStreamInvoker..ctor(Java.IO.InputStream)
at Android.Runtime.InputStreamInvoker.FromJniHandle (System.IntPtr handle, Android.Runtime.JniHandleOwnership transfer) [0x00035] in /Users/builder/azdo/_work/1/s/xamarin-android/src/Mono.Android/Android.Runtime/InputStreamInvoker.cs:168
at AndroidX.Security.Crypto.EncryptedFile.OpenFileInput () [0x00018] in D:\a\1\s\generated\androidx.security.security-crypto\obj\Release\monoandroid9.0\generated\src\AndroidX.Security.Crypto.EncryptedFile.cs:223
at ProactisMobileApp.Data.ExpenseData.WriteDataFile (System.String text) [0x00227] in D:\Work\Projects\Proactis\MobileApp\ProactisMobileApp\ProactisMobileApp\ProactisMobileApp\Data\ExpenseData.cs:324
--- End of managed Java.Lang.UnsupportedOperationException stack trace ---
java.lang.UnsupportedOperationException: For encrypted files, please open the relevant FileInput/FileOutputStream.
at androidx.security.crypto.EncryptedFile$EncryptedFileInputStream.getChannel(EncryptedFile.java:319)
at mono.java.lang.RunnableImplementor.n_run(Native Method)
at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:30)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:235)
at android.app.ActivityThread.main(ActivityThread.java:7441)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:936)

Start with the reproduced EncryptedFile.OpenFileInput() call and the stack trace through generated/src/AndroidX.Security.Crypto.EncryptedFile.cs and Android.Runtime.InputStreamInvoker.cs. Compare the binding behavior with the AndroidX Security Crypto API and verify the sample can read the encrypted stream without the UnsupportedOperationException.

Written by the indexing model from the issue text.