drm/i915/uc: Fix includes order

Fix includes order and make sure we only include required headers.
Suggested-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NMichal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: NJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: NJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171004181343.66348-5-michal.wajdeczko@intel.com

drivers/gpu/drm/i915/intel_uc.c

@@ -22,10 +22,9 @@
  *
  */
 
-#include "i915_drv.h"
 #include "intel_uc.h"
+#include "i915_drv.h"
 #include "i915_guc_submission.h"
-#include <linux/firmware.h>
 
 /* Reset GuC providing us with fresh state for both GuC and HuC.
  */