crespo: Add button backlight control to liblights

Change-Id: I414fc809f92c2a72e28140dbbacbc06fac59c589
Merge "crespo: Add button backlight control to liblights" into cm-10.2
crespo: Fix setting the colour to 0

Change-Id: I6b1ad02fe1834862d1c148c7150279da8a493457
crespo: update the recovery syntax for encryptable

Change-Id: Ib5e9e9e3d66e9649fa58a340f02499bad97e5b00
crespo: Remove CrespoParts

Change-Id: I721354d42ca6857dd55f1a14d81fe7f92dc4d52c
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2