disp: msm: delay msm_drv probe

This change delays the probe of msm_drv by changing the init call
order to ensure that all the dependent resource drivers are
probed and all resources are available for use by the msm_drv.

Change-Id: Icc225bd14052a8d83e9976fbaa9c83c17f5319aa
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>