overlay: Move LED flash to framework

Change-Id: Id18c3055a98f25c65a9ce66dbd68c67f71f3f8d7
Fix BT MAC on GSM variants

rild sets property service.brcm.bt.mac on GSM variants, which is then
picked up in hwaddrs.

Change-Id: Ie86f10b755690bbf52ce712d77039dbdf9579916
Merge pull request #1 from CyanogenMod/cm-10.2

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