msm_fb: HACK: Fix MSMFB_DISPLAY_COMMIT ioctl mismatch

This is a dirty hack to get around MSMFB_DISPLAY_COMMIT ioctl not matching between display HAL and kernel. Display HAL is sending command 0x40a86da4 for MSMFB_DISPLAY_COMMIT, so emulate MSMFB_DISPLAY_COMMIT when 0x40a86da4 command is sent.

Idea taken from Sultanxda:https://github.com/sultanxda/sultan-kernel-skyrocket-pure/commit/041e9212dfbc5cc150127fa306cc33a043dff92c