brcm2708: switch to linux 4.1

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46402 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/brcm2708/Makefile

@@ -16,7 +16,7 @@ CPU_TYPE:=arm1176jzf-s
 CPU_SUBTYPE:=vfp
 SUBTARGETS:=bcm2708 bcm2709
 
-KERNEL_PATCHVER:=3.18
+KERNEL_PATCHVER:=4.1
 
 include $(INCLUDE_DIR)/target.mk
 DEFAULT_PACKAGES += brcm2708-gpu-fw kmod-usb-hid kmod-sound-core kmod-sound-arm-bcm2835 kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1