drm/exynos: fixed a spelling error

Corrected a spelling mistake in the exynos_drm_fimd driver to improve code
readability. No functional changes were made.

Signed-off-by: Anindya Sundar Gayen <anindya.sg@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

Author: Anindya Sundar Gayen

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -731,7 +731,7 @@ static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win,
 	/*
 	 * Setting dma-burst to 16Word causes permanent tearing for very small
 	 * buffers, e.g. cursor buffer. Burst Mode switching which based on
-	 * plane size is not recommended as plane size varies alot towards the
+	 * plane size is not recommended as plane size varies a lot towards the
 	 * end of the screen and rapid movement causes unstable DMA, but it is
 	 * still better to change dma-burst than displaying garbage.
 	 */