Add new foreground service type camera and microphone.

To be used to configure foreground service camera/microphone
while-in-use permission.

For apps with targetSdkVersion R and above, a foreground service
will not be able to access camera/microphone if the foreground service
type is not specified in the manifest and in
android.app.Service#startForeground().

Bug: 136219221
Test: atest android.app.cts.ActivityManagerProcessStateTest

Change-Id: I75c62efca5f07ba1239e21d9a6f6673f822eabba