uboot-mediatek: update to U-Boot 2022.10

Remove patches adding support for MT7621 which have been merged upsteam.
Patches for MT7981 and MT7986 have been merged too, but not in time to
be included in the 2022.10 release, so we have to keep carrying them
until the 2023.01 release.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/boot/uboot-mediatek/patches/100-09-cmd-add-nmbm-command.patch

@@ -15,7 +15,7 @@ Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
 
 --- a/cmd/Kconfig
 +++ b/cmd/Kconfig
-@@ -1260,6 +1260,12 @@ config CMD_NAND_TORTURE
+@@ -1305,6 +1305,12 @@ config CMD_NAND_TORTURE
  
  endif # CMD_NAND