msm: camera_v2: Import from Google AOSP kk_mr2 kernel

Camera drivers should match userspace.
msm: camera_v2: Create jpeg debugfs

This fixes kmsg errors because jpeg debugfs creation fails. The
device is online for only a few millisecs so the real use of the
interface is questionable, thus a full fix in ion with a camera
subdir not nessecary.
msm: camera2: cpp: Reduce debug prints in cpp driver

The cpp driver had prints to monitor the status when node
is closed. This change makes them as pr_debug messages.

Change-Id: I8a78e6b38d7a702ed38f980d8fa658f50439da0f
Signed-off-by: Rajakumar Govindaram <rajakuma@codeaurora.org>