Misc camera HAL fixups.
tuna: Proper 48kHz audio support.

This fixes a bunch of annoying junk in the logcat about fast path being denied to UI sounds due to them having a 48000Hz sample rate.

Also allows playback of 96kHz audio, as Android refuses to resample to anything lower than a divide by two.
Commonize.
More commonize.
Remove excessive Settings overlays.

While I'm fairly certain they removed the 30 minute screen timeout option to prevent uninformed people from getting screen burn-in, it shouldn't be necessary for people running custom ROMs.
Slight overlay clean-up.