adm5120: use subtarget configs for all kernels

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44581 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/adm5120/rb1xx/config-3.8 b/target/linux/adm5120/rb1xx/config-default
similarity index 100%
rename from target/linux/adm5120/rb1xx/config-3.8
rename to target/linux/adm5120/rb1xx/config-default

diff --git a/target/linux/adm5120/router_be/config-3.8 b/target/linux/adm5120/router_be/config-default
similarity index 100%
rename from target/linux/adm5120/router_be/config-3.8
rename to target/linux/adm5120/router_be/config-default