Prevent UnsupportedOperationException in Completable

The CountDownLatch#await() will be unblocked if there is an
InterruptedException happened.

Then it will cause the UnsupportedOperationException when
calling Completable.ValueBase#enforceGetValueLocked(),

Add a retry mechanism if InterruptedException happened.

Bug: 176441559
Test: atest CtsInputMethodTestCases
Change-Id: I6b93e76f78b4b8c94fc4423c33a707207961816d