find7: Add LED overlays

Change-Id: Ide47ceec9b06ea605c18dc9fcd37bfe8bb3e82e8
find7: Move kernel commandline to device

Change-Id: I6b0ab7a541f8630261ecc02e007c7b9943e195ee
find7: Moving audio_policy.conf out of common repo

Change-Id: Ie4fd72e2057f6533f9a9f311e5277bbd430befd6
Those values are now in common

Signed-off-by: kecinzer <kecinzer@gmail.com>