Revert "Revert "msm: mdss: Allow smp change during composition switch""

This reverts commit eac463a3d6f66ac13eaf0c7e0a50da80e0610368

Change-Id: I46108ed7dd62c3b600833df084ce79e1fc54d06d
Merge "Revert "Revert "msm: mdss: Allow smp change during composition switch"""
Merge tag 'AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.04.048.088' into dev

AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.04.048.088 based on quic/aosp/LNX.LA.3.5.1_RB1