backlight lcd levelsconfigured for halfbreed

Change-Id: I3797d9693ff0c89ba8fcf920a248a46662e1536f
O3

Change-Id: Iff2066d231436f3f94f17a757b51ebe33b852937
increase headphones safe volume level

Change-Id: Iedae891c1f18eeebe178214a41d70ae3f784f569