drm/i915: Fix type of timeout_ms parameter in intel_wait_for_register_fw()

There is no need to specify timeout as unsigned long since this parameter
will be consumed by usecs_to_jiffies() which expects unsigned int only.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170407133212.174608-1-michal.wajdeczko@intel.com
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

drivers/gpu/drm/i915/i915_drv.h

@@ -3092,7 +3092,7 @@ int intel_wait_for_register_fw(struct drm_i915_private *dev_priv,
 			       i915_reg_t reg,
 			       const u32 mask,
 			       const u32 value,
-			       const unsigned long timeout_ms);
+			       const unsigned int timeout_ms);
 
 static inline bool intel_gvt_active(struct drm_i915_private *dev_priv)
 {

drivers/gpu/drm/i915/intel_uncore.c

@@ -1610,7 +1610,7 @@ int intel_wait_for_register_fw(struct drm_i915_private *dev_priv,
 			       i915_reg_t reg,
 			       const u32 mask,
 			       const u32 value,
-			       const unsigned long timeout_ms)
+			       const unsigned int timeout_ms)
 {
 #define done ((I915_READ_FW(reg) & mask) == value)
 	int ret = wait_for_us(done, 2);