Increment LINUX_RELEASE

The upstream builds always use LINUX_RELEASE=1. By setting it to 2 we
ensure that our modules are always preferred as long as our kernel version
is at least as high as the upstream one.

include/gluon.mk

@@ -16,6 +16,11 @@ BOARD_KDIR = $(BOARD_BUILDDIR)/kernel
 
 export BOARD_BUILDDIR
 
+
+LINUX_RELEASE := 2
+export LINUX_RELEASE
+
+
 GLUON_OPENWRTDIR = $(BOARD_BUILDDIR)/openwrt