in 1.1.0, can set record bitrate

Please follow the following instructions before filing a bug:

1. Github issues under this project are only for **sample**-related issues. If you have modified the sample code in any way, then this is probably not the appropriate place to report a bug.
1. If you are trying to report a bug related to the **CameraX library** then you can do so at the Android Issue Tracker: https://issuetracker.google.com/components/618491.
1. Include the specific sample where you found the issue, in addition to device model and specific Android build number -- which can be found under Settings > About phone.
1. Include error logs from logcat, if there are any.
1. If you can, also attach a [bug report](https://developer.android.com/studio/debug/bug-report)-- but please keep in mind that personal information can sometimes be found in those, so double check before attaching.

Das Issue identifiziert kein Beispiel, keine Datei, keinen Test, kein Gerät und kein fehlerhaftes Verhalten. Beginne damit, im Repository camera-samples das von der Aufnahme betroffene Beispiel zu lokalisieren, und kläre das gewünschte Bitratenverhalten, bevor du die Implementierungsarbeit und die Akzeptanzkriterien definierst.

Vom Indexierungsmodell aus dem Issue-Text verfasst.