drm/msm/mdp5: drop attached planes table
drm/msm/mdp5: drop attached planes table

Simplify things a bit for atomic, gets rid of some bookkeeping, and
makes the code cleaner.

Signed-off-by: Rob Clark <915c10c999604870200b6defbe633d857c856ca0@gmail.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs