rockchip64: uboot: fix stable mac address for rk3318-box

[paolosabatino]

Description

After bump to v2025.01, rk3318-box do not receive anymore a stable mac address.
The reason is that u-boot is not able anymore to properly detect the ethernet device because the upstream (ie: mainline kernel) device tree is missing a mac-phy reset property. This PR adds:

&gmac2phy {
        resets = <&cru SRST_GMAC2PHY_A>, <&cru SRST_MACPHY>;
        reset-names = "stmmaceth", "mac-phy";
}

to u-boot arch/arm/dts/rk3328-u-boot.dtsi, otherwise u-boot silently fail to initialize the fast ethernet.

Also the patch that was carrying several fixes for various rockchip devices was wrongly ported from v2024.07 and has been fixed now, hence the large diff; anyway this is totally confined to rk3318-box board, so no one else is affected by this change.

How Has This Been Tested?

• Tested on a rk3318 board and noticed a stable mac address

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• My changes generate no new warnings