Add node for swphy1 in qca953x.dtsi, as it is common part - but make it
disabled, as this one is rarely used in other devices. Enable it in
RBmAP-2nD and attach to eth1 as PHY.
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/9971
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>