[PATCH -next] media: staging: stkwebcam: Fix the build error with stkwebcam

[Gaosheng Cui <cuigaosheng1@xxxxxxxxxx>]

When I am building the kernel on arm64, set config CONFIG_USB=m &&
CONFIG_VIDEO_STKWEBCAM=y, I get some error reports as follows:
  drivers/staging/media/deprecated/stkwebcam/stk-webcam.o: In
    function `stk_v4l_dev_release':
  stk-webcam.c:(.text+0x3e0): undefined reference to `usb_put_intf'
  stk-webcam.c:(.text+0x3e8): undefined reference to `usb_put_dev'
  drivers/staging/media/deprecated/stkwebcam/stk-webcam.o: In
  function `stk_clean_iso':
  stk-webcam.c:(.text+0xb0c): undefined reference to `usb_kill_urb'
  stk-webcam.c:(.text+0xb14): undefined reference to `usb_free_urb'

Fix it by add dependency option on USB for VIDEO_STKWEBCAM.

Signed-off-by: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx>
---
 drivers/staging/media/deprecated/stkwebcam/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/deprecated/stkwebcam/Kconfig b/drivers/staging/media/deprecated/stkwebcam/Kconfig
index 7234498e634a..083fadab232d 100644
--- a/drivers/staging/media/deprecated/stkwebcam/Kconfig
+++ b/drivers/staging/media/deprecated/stkwebcam/Kconfig
@@ -2,7 +2,7 @@
 config VIDEO_STKWEBCAM
 	tristate "USB Syntek DC1125 Camera support (DEPRECATED)"
 	depends on VIDEO_DEV
-	depends on MEDIA_USB_SUPPORT && MEDIA_CAMERA_SUPPORT
+	depends on USB && MEDIA_USB_SUPPORT && MEDIA_CAMERA_SUPPORT
 	help
 	  Say Y here if you want to use this type of camera.
 	  Supported devices are typically found in some Asus laptops,
-- 
2.25.1