uboot-mediatek: restore Ethernet PHY drivers

Partially revert commit 332645a610 ("uboot-mediatek: sync with
mtk-openwrt/u-boot 20250711") by dropping unused PHY drivers which come
with large embedded firmware (and are hence inacceptable for upstream)
and restoring our previous version of the Airoha EN8811H driver which is
known to work and load firmware from the eMMC boot1 hardware partition
instead of embedding it in the driver.

In future we may switch to the upstream Airoha EN8811H driver which
allows loading the firmware either from a filesystem or overloading the
en8811h_read_fw() for board which may eg. store that firmware directly
inside a eMMC hardware partition or UBI volume, like the BPi-R3 mini
does.

See also:
https://patchwork.ozlabs.org/project/uboot/patch/20250615131243.30770-1-lucienzx159@gmail.com/

Fixes: 332645a610 ("uboot-mediatek: sync with mtk-openwrt/u-boot 20250711")
Reported-by: Adrian Bente
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/boot/uboot-mediatek/patches/100-29-net-phy-add-Marvell-CUX3410.patch

@@ -1,32 +0,0 @@
-From cedc08e33bf608765464dd80ce3cc170a636a3dd Mon Sep 17 00:00:00 2001
-From: Weijie Gao <weijie.gao@mediatek.com>
-Date: Thu, 16 Jan 2025 09:13:10 +0800
-Subject: [PATCH 29/30] net: phy: add Marvell CUX3410
-
-Add support for Marvell CUX3410 ethernet PHY
-
-Signed-off-by: Bo-Cun Chen <bc-bocun.chen@mediatek.com>
----
- drivers/net/phy/aquantia.c | 14 ++++++++++++++
- 1 file changed, 14 insertions(+)
-
---- a/drivers/net/phy/aquantia.c
-+++ b/drivers/net/phy/aquantia.c
-@@ -744,3 +744,17 @@ U_BOOT_PHY_DRIVER(aqr412) = {
- 	.shutdown = &gen10g_shutdown,
- 	.data = AQUANTIA_GEN3,
- };
-+
-+U_BOOT_PHY_DRIVER(cux3410) = {
-+	.name = "Marvell CUX3410",
-+	.uid = 0x31c31dd3,
-+	.mask = 0xfffffff0,
-+	.features = PHY_10G_FEATURES,
-+	.mmds = (MDIO_MMD_PMAPMD | MDIO_MMD_PCS |
-+		 MDIO_MMD_PHYXS | MDIO_MMD_AN |
-+		 MDIO_MMD_VEND1),
-+	.config = &aquantia_config,
-+	.startup = &aquantia_startup,
-+	.shutdown = &gen10g_shutdown,
-+	.data = AQUANTIA_GEN3,
-+};