drm/msm/mdp5: remove global mdp5_ctl_mgr
drm/msm/mdp5: remove global mdp5_ctl_mgr

A bit cleaner.. and won't resulting in an attempt to kfree() a static
global in unload path.

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

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