psb_video: implement reset function by power up/down MSVDX

psb_video: implement reset function by power up/down MSVDX

When MSVDX FW uploading is done by PUNIT, just after
MSVDX power up operation, In order to reset HW, driver need to
do one power off and power on, and wait for PUNIT re-upload FW
again.
This patch will enable driver to reset HW when there is a request.

Signed-off-by: Binglin Chen <binglin.chen@intel.com>
Signed-off-by: Daniel Charles <daniel.charles@intel.com>
Acked-by: Sean V Kelley <sean.v.kelley@intel.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>