M2: camera: Disable software override for axi wm priority.

Remove the software override for write master priority because
hardware assigns priority to write masters based on data rate.

Change-Id: If16b54f05d41a2d78606ae21983aa3248eb2b1a3
Signed-off-by: Nishant Pandit <npandit@codeaurora.org>
Signed-off-by: Praveen Ac <praveenac@codeaurora.org>
Merge "M2: camera: Disable software override for axi wm priority." into jellybean-mr2