Frameworks: fix typo

causes broken backlight on hardwarekeys
if it is set to always on

sorry for that

cheers

Change-Id: I4747239f681f4714ac1ab767a1be48219e1b620f
Don't assume any ringtone is present on external storage.

If that assumption doesn't hold true, the user will lose his ringtone
and won't know why.

Change-Id: I89409e1351792d020c5458f5104f4bb9f2a040f2