adm5120: use subtarget configs for all kernels

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 44581

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