drm/komeda: Fix komeda driver build error

Fix the build errors lead by

'commit 4039f029 ("drm/komeda: Add option to print WARN- and INFO-level IRQ events")'
Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191113013114.3013-1-james.qian.wang@arm.com

drivers/gpu/drm/arm/display/komeda/komeda_dev.h

@@ -51,12 +51,12 @@
 
 #define KOMEDA_WARN_EVENTS	KOMEDA_ERR_CSCE
 
-#define KOMEDA_INFO_EVENTS ({0 \
+#define KOMEDA_INFO_EVENTS (0 \
 			    | KOMEDA_EVENT_VSYNC \
 			    | KOMEDA_EVENT_FLIP \
 			    | KOMEDA_EVENT_EOW \
 			    | KOMEDA_EVENT_MODE \
-			    })
+			    )
 
 /* malidp device id */
 enum {