Revert "Revert "msm_fb: Revert "msm: mdp: Update sync pt. behaviour" [1/3]""

This reverts commit 41c75fefb47eeec9e23edd68ee5e6e6c849e95b9.
Revert "Revert "msm_fb: Revert "msm: mdp: Update sync pt. behaviour" [2/3]""

This reverts commit 45baa60c6619f1df0cf9716ce0bd4b48e28ff139.