cm: Skip backuptool on GMS builds

Change-Id: Id0cf16551b87be2d218f04b0d5a158d88ace4e74
cm: Update permissions for ondemand sysfs nodes

Change-Id: I4d7e856a720bef539bd5c43624cc8ed746b2cc95
Merge branch 'cm-10.2' of http://github.com/CyanogenMod/android_vendor_cm into cm-10.2