Bluetooth: MCE: Add new API to set message read status or deleted status

Bug: 146314855
Test:
1. Pair with a remote device which address is like 00:01:02:03:04:05
2. On remote device allow MAP connection
3. Make sure there is at least 1 unread message in last week on remote device
4. adb shell am instrument -w -e mce_set_message_status_iterations 1 -e device_address
 00:01:02:03:04:05 -e class android.bluetooth.BluetoothStressTest#testMceSetMessageStatus
 com.android.bluetooth.tests/android.bluetooth.BluetoothTestRunner

Change-Id: I7a3e337142bc39a55c1bfd425e0966e1fb1b9a68