msm: mdss: calculate performance requirements during pipe setup

Update performance calculations to account for vertical decimation and
tune this parameter during pipe setup when we find that current
configuration won't lead to MDP underflow. If tuning cannot be done to
avoid underflow then fail the use case in overlay set to allow use case
to use a fallback solution.

CRs-Fixed: 490341
Change-Id: I97fc300048be1df869681474a6e0ac53c32f67d2
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>