drm/sun4i: backend: Fix define typo

There was a typo in the width spelling of the (unused)
SUN4I_BACKEND_IYUVLINEWITDTH_REG macro. Fix it.
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6b2e872b611b733a98a38902a2197b70c725e0b9.1516617243.git-series.maxime.ripard@free-electrons.com

drivers/gpu/drm/sun4i/sun4i_backend.h

@@ -112,7 +112,9 @@
 #define SUN4I_BACKEND_SPRALPHACTL_REG		0x90c
 #define SUN4I_BACKEND_IYUVCTL_REG		0x920
 #define SUN4I_BACKEND_IYUVADD_REG(c)		(0x930 + (0x4 * (c)))
-#define SUN4I_BACKEND_IYUVLINEWITDTH_REG(c)	(0x940 + (0x4 * (c)))
+
+#define SUN4I_BACKEND_IYUVLINEWIDTH_REG(c)	(0x940 + (0x4 * (c)))
+
 #define SUN4I_BACKEND_YGCOEF_REG(c)		(0x950 + (0x4 * (c)))
 #define SUN4I_BACKEND_YGCONS_REG		0x95c
 #define SUN4I_BACKEND_URCOEF_REG(c)		(0x960 + (0x4 * (c)))