drm/exynos: use adjusted_mode of crtc_state instead of mode

Handle changes by removing copy from adjusted_mode to mode as using
adjusted_mode of crtc_state.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index a0edab8..b326b31 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -337,7 +337,7 @@
 static void fimd_commit(struct exynos_drm_crtc *crtc)
 {
 	struct fimd_context *ctx = crtc->ctx;
-	struct drm_display_mode *mode = &crtc->base.mode;
+	struct drm_display_mode *mode = &crtc->base.state->adjusted_mode;
 	struct fimd_driver_data *driver_data = ctx->driver_data;
 	void *timing_base = ctx->regs + driver_data->timing_base;
 	u32 val, clkdiv;