tegra: video: Move the check for CONFIG_OF_CONTROL to Kconfig

We can check this in Kconfig now.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

drivers/video/Kconfig

@@ -383,6 +383,7 @@ config VIDEO_SANDBOX_SDL
 
 config VIDEO_TEGRA20
 	bool "Enable LCD support on Tegra20"
+	depends on OF_CONTROL
 	help
 	   Tegra20 supports video output to an attached LCD panel as well as
 	   other options such as HDMI. Only the LCD is supported in U-Boot.

drivers/video/tegra.c

@@ -51,10 +51,6 @@ vidinfo_t panel_info = {
 	.vl_col = -1,
 };
 
-#if !CONFIG_IS_ENABLED(OF_CONTROL)
-#error "You must enable CONFIG_OF_CONTROL to get Tegra LCD support"
-#endif
-
 static void update_window(struct dc_ctlr *dc, struct disp_ctl_win *win)
 {
 	unsigned h_dda, v_dda;