msm_shared: mdp: fix 8084 under-run issues

MDP5 has various versions where each has different HW configuration.
Current vbif setup implementation is carrying invalid configuration
for apq8084 which leads to under-runs issues. Fix this issue by
removing targets where old vbif settings are not needed.

Change-Id: Icec5e09804947c984c1624988cfd61e1c7047d89
2 files changed