CL uploaded: https://chromium-review.googlesource.com/c/420585/

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/third_party/kernel/+/0f89c9e0920470acb234110cb9631f0544b63cfc

commit 0f89c9e0920470acb234110cb9631f0544b63cfc
Author: Ricky Liang <jcliang@chromium.org>
Date: Sat Dec 17 12:33:42 2016

CHROMIUM: [media] s5p-jpeg: add support for multi-planar APIs

This patch adds multi-planar APIs to the s5p-jpeg driver. The multi-planar
APIs are identical to the exisiting single-planar APIs except the plane
format info is stored in the v4l2_pixel_format_mplan struct instead
of the v4l2_pixel_format struct.

It might be possible to add multi-planar pixel format support (e.g. support
V4L2_PIX_FMT_YUV420M in addition to V4L2_PIX_FMT_YUV420), but let's leave
that as a strech goal.

BUG= chromium:675347 
TEST=Built and deployed kernel to my peach_pi. Verify with
     jpeg_decode_acceleraotr_unittest and make sure JPEG hardware decode
     is used in Hangout.

Change-Id: I96ba24ef4be569134b67f30f0ed76d65650fb58f
Signed-off-by: Ricky Liang <jcliang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/421310
Reviewed-by: Pawel Osciak <posciak@chromium.org>

[modify] https://crrev.com/0f89c9e0920470acb234110cb9631f0544b63cfc/drivers/media/platform/s5p-jpeg/jpeg-core.h
[modify] https://crrev.com/0f89c9e0920470acb234110cb9631f0544b63cfc/drivers/media/platform/s5p-jpeg/jpeg-core.c