UPSTREAM: drm: move MODULE_PARM_DESC to other file

UPSTREAM: drm: move MODULE_PARM_DESC to other file

We moved the module options from drm_drv.c to drm_irq.c in 18882995713d
('drm: Move vblank related module options into drm_irq.c').  Let's move
the MODULE_PARM_DESC()s as well so they're together.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160108110045.GF32195@mwanda
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit d9d8c4cf23e8badfa8d49fe66c6a49970f896689)

Change-Id: Icedf3f3eb6478e684b21d60cc8053177374180db
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>