add initial 3.13 support

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 39348

target/linux/generic/patches-3.13/200-fix_localversion.patch

@@ -0,0 +1,11 @@
+--- a/scripts/setlocalversion
++++ b/scripts/setlocalversion
+@@ -164,7 +164,7 @@ else
+ 	# annotated or signed tagged state (as git describe only
+ 	# looks at signed or annotated tags - git tag -a/-s) and
+ 	# LOCALVERSION= is not specified
+-	if test "${LOCALVERSION+set}" != "set"; then
++	if test "${CONFIG_LOCALVERSION+set}" != "set"; then
+ 		scm=$(scm_version --short)
+ 		res="$res${scm:++}"
+ 	fi