Can `build --enable_platform_specific_config` automatically detect the right APPLE_SDK_PLATFORM for build target?

Hi,

When we upgrade Bazel from 6.x to 7.x, it seems that the flag `build --apple_platform_type=ios` no longer works.
We expect to use the below config in .bazelrc, to detect the targets automatically. If the build target is `ios_arm64`, it will include all ios standard libraries. If the build target is "macos_arm64", it will include all macOS libraries.
```
build --enable_platform_specific_config
build:macos --apple_crosstool_top=@local_config_apple_cc//:toolchain
build:macos --crosstool_top=@local_config_apple_cc//:toolchain
build:macos --host_crosstool_top=@local_config_apple_cc//:toolchain
```

However, likely it doesn't work that way. when we try to build an iOS build target, it still misses some standard ios libraries. for instance,

fatal error: 'UIKit/UIKit.h' file not found
#import
^~~~~~~~~~~~~~~
1 error generated.
Error in child process '/usr/bin/xcrun'. 1

Start with the .bazelrc configuration using --enable_platform_specific_config and the platform-specific crosstool settings. Reproduce the ios_arm64 build and inspect the xcrun failure and missing UIKit/UIKit.h diagnostic, then compare it with a macos_arm64 build. Done means the selected target automatically receives the appropriate Apple SDK and the iOS standard libraries are found.

Written by the indexing model from the issue text.