HACK: CHROMIUM: media: platform: mediatek: mdp3: Compute plane address with data_offset

With V4L2 MEMORY DMABUF API, it is necessary to set a file descriptor on
each plane. The way to pass an offset with a DmaBuf is not defined in V4L2
specification. This is the case as it is needed to specify offsets because
Chromium creates one DmaBuf for the planes.

BUG=chromium:901264
BUG=b:143515730, b:341019453
TEST=camera preview & capture pass
UPSTREAM-TASK=b:368493852

Change-Id: I947b9aa283bddda82c0cb275da7b652c1a63ddd4
Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/5892921


Reviewed-by: Hsin-Te Yuan <yuanhsinte@chromium.org>
Tested-by: Hsin-Te Yuan <yuanhsinte@chromium.org>
Commit-Queue: Hsin-Te Yuan <yuanhsinte@chromium.org>
Signed-off-by: Hubert Mazur <hmazur@google.com>
Signed-off-by: Tomasz Nowicki <tnowicki@google.com>