mango: add button brightness overlay

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: Ifc65b48bf258fb7530ad11bc6f5b60bb18254c8a
mango: add device specific init

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I31a78e84ad9bd2cee64890d7a528271c5cb110d3
mango: add device specific lights header

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I10842169de83e539589f56834d9dbb9acbffac47
mango: cleanup recovery init

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I7d83ed4ccf2de35dde5439c1de053d341bdcb954
Merge pull request #3 from LegacyXperia/cm-10.2

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