kernel: Make video-gspca-core depend on vidobuf2

This new dependency is needed for kernel 4.19.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/kernel/linux/modules/video.mk

@@ -385,7 +385,7 @@ $(eval $(call KernelPackage,video-uvc))
 define KernelPackage/video-gspca-core
   MENU:=1
   TITLE:=GSPCA webcam core support framework
-  DEPENDS:=@USB_SUPPORT +kmod-usb-core +kmod-input-core
+  DEPENDS:=@USB_SUPPORT +kmod-usb-core +kmod-input-core +LINUX_4_19:kmod-video-videobuf2
   KCONFIG:=CONFIG_USB_GSPCA
   FILES:=$(LINUX_DIR)/drivers/media/$(V4L2_USB_DIR)/gspca/gspca_main.ko
   AUTOLOAD:=$(call AutoProbe,gspca_main)