Enable media fgs state tranistion for app with targetSdkVersion >=34.

Current API level for android is 36 (Android 16). Existing app to ensure
discoverability have upto two years to update i.e on devices with
Android 16, apps with targetSdkVersion >=34 can be discovered on play
store.

Test: atest cts/tests/app/FgsTest/src/android/app/cts/fgstest/ActivityManagerNotifyMediaFGSTypeTest.java
Test: Manually verified an app for app store with targetSdkVersion '34'
Flag: com.android.media.flags.enable_notifying_activity_manager_with_media_session_status_change
BUG: 281762171

Change-Id: I39287cab5fa361531c66451b642f3ec128be5800
Signed-off-by: Pradeep Sawlani <sawlani@google.com>