msm: mdss: MISR changes for mdp3

Modify Command Mode Sequence for CRC and add MISR changes on
mdp3 for CRC validation. Fb test automation can be done by
checking the CRC data generated here against the reference
CRC table.

Change-Id: I41f7a0a356e6182be2e79526a257d41a8ff248a9
Acked-by: Sachin Bhayare <sbhayare@qti.qualcomm.com>
Signed-off-by: Shivaraj Shetty <shivaraj@codeaurora.org>