kernel: add missing config symbol for 3.13.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39531 3c298f89-4303-0410-b956-a3cf2f4a3e73
kernel: negate kernel version dependencies to fix config for new kernel versions

This fixes some problems on kernel 3.13 and also removes the reference to LINUX_3_7.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39532 3c298f89-4303-0410-b956-a3cf2f4a3e73
kernel: fix bridge compilation on kernel 3.13

The int brnf_call_ebtables in the header should be extern, otherwise 
every object file gets its own int and they will conflict when linking 
the binary.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39533 3c298f89-4303-0410-b956-a3cf2f4a3e73