Reset IME to the build-in IME when there is something wrong with the current IME.

Bug: 3186000

- By this change, there will be no need to find new applicable IME in Settings application
- This change handles the edge case that there is something wrong with the current IME

Change-Id: Idb42b6184ac135370064b967305faa81f1b382b2
1 file changed