s4-common: utilize recovery_root_private

Prebuilt modules can be placed in the correct directory structure under
recovery/root and the build system will automatically copy them to the
recovery ramdisk.

Move offmode charging images to devices since they are resolution
dependent.

Change-Id: I36cb2dc104a250c6f63f009b8b78aa1078808927
s4-common: Disable denoise setting for camera

Enabling denoise causes camera to crash. Report that only "off" is
supported so that Camera2 removes the setting.

Change-Id: I6caab1d78cf24cc3b1b2faaa8a9d1b3d4c6e7715
Merge pull request #4 from CyanogenMod/cm-11.0

recovery + cam updates