Catch IllegalStateException in RadioManager.openTuner()

b/126887436 is caused by the failure to catch this exception, which
prevents the creation of RadioAppService, which in turn causes
RadioActivity to crash upon creation.

Bug: 126887436
Test: Manually verified mitigation of b/126887436
Change-Id: I99a35c6c26a00ea1b977a592fc1c08e3127b6351