disp: msm: dp: Implement dsc slice selection logic based on sink caps

The dp sink explicitly states the numbers of
slices it can support. When calculating the
number of slices for dsc configuration, ensure
that the sink supports the calculated number of
slices.

If the sink does not support the calculated
number of slices, keep rechecking sink support
for the subsequent slice increment, until we
reach the highest number of slices possible
according to the dp spec. If no compatible
sink slice support is found, do not enable dsc.

CRs-Fixed: 2325207
Change-Id: I485adacd258963cdec9cc52aa041373883ecadc7
Signed-off-by: Fuad Hossain <fhossain@codeaurora.org>