drm/i915: Add missing ')' to SKL_PS_ECC_STAT define

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446672017-24497-29-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

drivers/gpu/drm/i915/i915_reg.h

@@ -5713,7 +5713,7 @@ enum skl_disp_power_wells {
 			_ID(id, _PS_HPHASE_1B, _PS_HPHASE_2B))
 #define SKL_PS_ECC_STAT(pipe, id)  _PIPE(pipe,     \
 			_ID(id, _PS_ECC_STAT_1A, _PS_ECC_STAT_2A),   \
-			_ID(id, _PS_ECC_STAT_1B, _PS_ECC_STAT_2B)
+			_ID(id, _PS_ECC_STAT_1B, _PS_ECC_STAT_2B))
 
 /* legacy palette */
 #define _LGC_PALETTE_A           0x4a000