Revert "msm_fb: display: check bus scale handler for registration"

This reverts commit 5160e6a6866559e05020c2be3be9eda40f0ad5d6.
Revert "msm_fb: display: wait4vsync after timing generator is turned off"

This reverts commit 53095583ec5cb2b0c9961dc0f135ae8108795505.
Revert "msm_fb: display: wait4vsync before set suspend flag"

This reverts commit 6603085112b0d5ffc7e65c828cab3a8e3b761a17.
Revert "msm_fb: display: get mipi frame rate from panel file"

This reverts commit 517cb923240abd1ac5464b9a897af755644353d3.
Revert "video: msm: Remove timeout from wait4vsync"

This reverts commit a2e5aa17a48997e86916ac0b61a994828e0834ef.