generic: backport Realtek PHY patches from upstream

package/kernel/linux/modules/netdevices.mk

...et-phy-realtek-add-support-for-reading-MDIO_MMD_VEN.patch

...et-phy-move-realtek-PHY-driver-to-its-own-subdirect.patch

...et-phy-realtek-add-hwmon-support-for-temp-sensor-on.patch

...net-phy-realtek-use-genphy_soft_reset-for-2.5G-PHYs.patch

...-phy-realtek-disable-SGMII-in-band-AN-for-2-5G-PHYs.patch

...et-phy-realtek-make-sure-paged-read-is-protected-by.patch

...-6.6/720-04-net-phy-realtek-introduce-rtl822x_probe.patch

...05-net-phy-realtek-detect-early-version-of-RTL8221B.patch

...20-06-net-phy-realtek-support-interrupt-of-RTL8221B.patch

...ediatek/patches-6.6/500-gsw-rtl8367s-mt7622-support.patch

...x/mediatek/patches-6.6/735-net-phy-realtek-rtl8261n.patch

target/linux/realtek/patches-6.6/720-add-rtl-phy.patch