Revert "msm: msm_fb: Replace wait for DMA_P with VSYNC in Pan_display Path."

This reverts commit 7c35b09ec3122329a53ea68ec9b42892df2713b2.
Revert "msm: msm_fb: wait for VSYNC instead of DMA_P for commit completion."

This reverts commit bb5dceb6d00fa1c0fdb5d72933e520786b51841a.
enable gpu oc