ramips: rt3833: fix build breakage

Commit 60f41c6c9e ("ramips: add usb-ledtrig-usbport to DEVICE_PACKAGES
of CY-SWR1100") added stray | during backport which caused build
breakage on the buildbots:

 bash: -c: line 0: syntax error near unexpected token `|'
 bash: -c: line 0: `echo kmod-usb-core kmod-usb-ledtrig-usbport kmod-usb-ohci kmod-usb2 swconfig | | mkhash md5 | head -c 8'

Fixes: 60f41c6c9e ("ramips: add usb-ledtrig-usbport to DEVICE_PACKAGES of CY-SWR1100")
Signed-off-by: Petr Štetiar <ynezz@true.cz>

target/linux/ramips/image/rt3883.mk

@@ -24,7 +24,7 @@ define Device/cy-swr1100
   KERNEL := $(KERNEL_DTB)
   SEAMA_SIGNATURE := wrgnd10_samsung_ss815
   DEVICE_TITLE := Samsung CY-SWR1100
-  DEVICE_PACKAGES := kmod-usb-core kmod-usb-ohci kmod-usb2 | \
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb-ohci kmod-usb2 \
 	kmod-usb-ledtrig-usbport swconfig
 endef
 TARGET_DEVICES += cy-swr1100