rockchip: fix phy reset on rk356x

rockchip: fix phy reset on rk356x

The commit 7160820d742a ("phy: rockchip: naneng-combphy: fix phy reset")
was backported to kernel 6.6 branch by upstream, however the correspond
dtsi fixes was not, resulting the following error:
```
[    0.225521] rockchip-naneng-combphy fe830000.phy: error -ENOENT: failed to get phy reset
[    0.227467] rockchip-naneng-combphy fe840000.phy: error -ENOENT: failed to get phy reset
```

So backport the dtsi fixes here manually.

Fixes: 89b2356b8c2f ("kernel: bump 6.6 to 6.6.69")
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
Link: https://github.com/openwrt/openwrt/pull/17468
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 8a477bafb4637e3499f69f569133039ce060559e)