gpu: drm: drivers: Convert printk(KERN_<LEVEL> to pr_<level>

Use a more common logging style.

Miscellanea:

o Coalesce formats and realign arguments
o Neaten a few macros now using pr_<level>

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Sinclair Yeh <syeh@vmware.com>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/76355db47b31668bb64d996865ceee53bd66b11f.1488285953.git.joe@perches.com
diff --git a/drivers/gpu/drm/omapdrm/omap_gem.c b/drivers/gpu/drm/omapdrm/omap_gem.c
index 4a90c69..8d80aef 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem.c
@@ -1107,9 +1107,8 @@ static inline bool is_waiting(struct omap_gem_sync_waiter *waiter)
 
 /* macro for sync debug.. */
 #define SYNCDBG 0
-#define SYNC(fmt, ...) do { if (SYNCDBG) \
-		printk(KERN_ERR "%s:%d: "fmt"\n", \
-				__func__, __LINE__, ##__VA_ARGS__); \
+#define SYNC(fmt, ...) do { if (SYNCDBG)				\
+		pr_err("%s:%d: " fmt "\n", __func__, __LINE__, ##__VA_ARGS__); \
 	} while (0)