Handle API 31 split-permissions, minor APKVerifier improvements

• https://developer.android.com/guide/topics/connectivity/bluetooth/permissions#declare-android12-or-higher
• https://android.googlesource.com/platform/frameworks/base/+/4452bbd06550baaa141b1ccb9a850a165d30fab3
• https://android.googlesource.com/platform/frameworks/base/+/6dcac06a8461eccbf70c4fe72bc6adb7d4ae8e3f

Change-Id: I75ef989de2a8583a18eb4fb4b66a0d140bc37e7e