uboot-mediatek: update to U-Boot 2023.01

Support for MT7981 and MT7986 has been merged, remove patches.
Tested on a couple of MT7986, MT7622 and MT7623 boards.
MIPS builds are untested.

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

package/boot/uboot-mediatek/patches/130-fix-mkimage-host-build.patch

@@ -1,6 +1,6 @@
 --- a/tools/image-host.c
 +++ b/tools/image-host.c
-@@ -1122,6 +1122,7 @@ static int fit_config_add_verification_d
+@@ -1125,6 +1125,7 @@ static int fit_config_add_verification_d
   * 2) get public key (X509_get_pubkey)
   * 3) provide der format (d2i_RSAPublicKey)
   */
@@ -8,7 +8,7 @@
  static int read_pub_key(const char *keydir, const void *name,
  			unsigned char **pubkey, int *pubkey_len)
  {
-@@ -1175,6 +1176,13 @@ err_cert:
+@@ -1178,6 +1179,13 @@ err_cert:
  	fclose(f);
  	return ret;
  }