video: exynos: Ensure definitions match prototypes

Ensure that the definitions of functions match the prototypes used by
other modules by including the header with the prototypes in the files
with the definitions.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/exynos/exynos_mipi_dsi_lowlevel.c b/drivers/video/exynos/exynos_mipi_dsi_lowlevel.c
index 15c5abd..c148d06 100644
--- a/drivers/video/exynos/exynos_mipi_dsi_lowlevel.c
+++ b/drivers/video/exynos/exynos_mipi_dsi_lowlevel.c
@@ -27,6 +27,7 @@
 #include <video/exynos_mipi_dsim.h>
 
 #include "exynos_mipi_dsi_regs.h"
+#include "exynos_mipi_dsi_lowlevel.h"
 
 void exynos_mipi_dsi_func_reset(struct mipi_dsim_device *dsim)
 {