look up device path via uci instead of assuming a direct phy index Signed-off-by: Felix Fietkau <nbd@openwrt.org> git-svn-id: svn+ssh://svn.openwrt.org/openwrt/trunk@42759 3c298f89-4303-0410-b956-a3cf2f4a3e73
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>