nitrogen6x: Fix compile error if VIDEO_IPUV3 is disabled

Following compile error happens for mx6qsabrelite when disable
CONFIG_VIDEO_IPUV3.

board/boundary/nitrogen6x/nitrogen6x.c: In function 'misc_init_r':
board/boundary/nitrogen6x/nitrogen6x.c:912:22: error: 'RGB_BACKLIGHT_GP' undeclared (first use in this function)
  912 |         gpio_request(RGB_BACKLIGHT_GP, "lvds backlight");
      |                      ^~~~~~~~~~~~~~~~
board/boundary/nitrogen6x/nitrogen6x.c:912:22: note: each undeclared identifier is reported only once for each function it appears in
  CC      cmd/bind.o
  CC      drivers/gpio/gpio-uclass.o
  CC      boot/bootmeth_extlinux.o
board/boundary/nitrogen6x/nitrogen6x.c:913:22: error: 'LVDS_BACKLIGHT_GP' undeclared (first use in this function)
  913 |         gpio_request(LVDS_BACKLIGHT_GP, "lvds backlight");
      |                      ^~~~~~~~~~~~~~~~~
  AR      arch/arm/lib/lib.a
make[1]: *** [scripts/Makefile.build:271: board/boundary/nitrogen6x/nitrogen6x.o] Error 1
  CC      boot/bootmeth_pxe.o
make: *** [Makefile:2205: board/boundary/nitrogen6x] Error 2
make: *** Waiting for unfinished jobs....

To fix this, use reported macros included in CONFIG_VIDEO_IPUV3.

Fixes: 1b51e5f4cd2a ("nitrogen6x: reserve used gpios")

Signed-off-by: Jacky Cao <[email protected]>
Reviewed-by:  Simon Gaynor <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index 1adee9a461f..e45db109f4f 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -909,8 +909,10 @@ static const struct boot_mode board_boot_modes[] = {
 
 int misc_init_r(void)
 {
+#if defined(CONFIG_VIDEO_IPUV3)
 	gpio_request(RGB_BACKLIGHT_GP, "lvds backlight");
 	gpio_request(LVDS_BACKLIGHT_GP, "lvds backlight");
+#endif
 	gpio_request(GP_USB_OTG_PWR, "usbotg power");
 	gpio_request(IMX_GPIO_NR(7, 12), "usbh1 hub reset");
 	gpio_request(IMX_GPIO_NR(2, 2), "back");