board: lg: star: make panel fix optional

Currently, U-Boot fails with an FDT patching error if the LG Optimus 2X
device tree lacks a panel node. Since the panel is optional hardware,
patching should be optional as well. Fix this by allowing bootflow to
continue if the panel node is missing.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>

board/lg/star/star.c

@@ -46,6 +46,8 @@ void pinmux_init(void)
 #if IS_ENABLED(CONFIG_OF_LIBFDT) && IS_ENABLED(CONFIG_OF_BOARD_SETUP)
 int ft_board_setup(void *fdt, struct bd_info *bd)
 {
-	return star_fix_panel(fdt);
+	star_fix_panel(fdt);
+
+	return 0;
 }
 #endif