video: kmod-pwm does not exist anymore

it was removed in r43947

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>
Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 48699

package/kernel/linux/modules/video.mk

@@ -40,7 +40,7 @@ $(eval $(call KernelPackage,backlight))
 define KernelPackage/backlight-pwm
 	SUBMENU:=$(VIDEO_MENU)
 	TITLE:=PWM Backlight support
-	DEPENDS:=+kmod-pwm +kmod-backlight
+	DEPENDS:=+kmod-backlight
 	KCONFIG:=CONFIG_BACKLIGHT_PWM
 	FILES:=$(LINUX_DIR)/drivers/video/backlight/pwm_bl.ko
 	AUTOLOAD:=$(call AutoProbe,video pwm_bl)