drm/i915: Unify uC variable types to avoid flooding checkpatch.pl

With the code motion mostly done, convert all the uC code away
from uint??_t at once (only a couple dozen variables), so that
reading the checkpatch.pl output should actually pinpoint if
a new uint??_t was accidentally introduced.

v2: - Include intel_uc_fw.h too (Sagar)

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171006084940.15910-1-joonas.lahtinen@linux.intel.com

drivers/gpu/drm/i915/intel_guc.h

@@ -52,7 +52,8 @@ struct intel_guc {
 	struct i915_guc_client *execbuf_client;
 
 	DECLARE_BITMAP(doorbell_bitmap, GUC_NUM_DOORBELLS);
-	uint32_t db_cacheline;		/* Cyclic counter mod pagesize	*/
+	/* Cyclic counter mod pagesize	*/
+	u32 db_cacheline;
 
 	/* GuC's FW specific registers used in MMIO send */
 	struct {