Live Volume Steps [1/2]

-Created by me(@Meticulus) for the almighty BeanStalk ROM!

-Volume steps changes are instant, no need to reboot!

PS2: Clean up
PS3: Rebase
PS4: include lvs: transitioned volume steps volume normalization from Commit 5331
PS5: Nope, we don't squash commits for no reason.
PS6: Rebase and correct whitespace

Change-Id: Ia821c7326f6ba8c9e35b4c0b4caa9c9fb5e060f2

Conflicts:
	media/java/android/media/AudioService.java