Settings: use CMHW serial number

See http://review.cyanogenmod.org/57164

Change-Id: If328ca7b487435b88246d1f8c47b04770183f09e
settings: Add text plain battery style

Patchset 2: Fixed dependents
Patchset 3: Rebased

Requires: http://review.cyanogenmod.org/#/c/56038/

Change-Id: Ieb45b23bcfc850dbee6577885fb2f8312d19bdd6
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Merge "settings: Add text plain battery style" into cm-11.0
Merge "Settings: use CMHW serial number" into cm-11.0
Merge remote-tracking branch 'cyanogen/cm-11.0' into cm-11.0