failed to build u-boot mt7621_rfb_defconfig

I checkout u-boot tag: v2023.10 https://github.com/u-boot/u-boot/tree/v2023.10 run build: ```shell export STAGING_DIR=/home/foo/openwrt-toolchain-22.03.4-ramips-mt7621_gcc-11.2.0_musl.Linux-x86_64/ make mt7621_rfb_defconfig make CROSS_COMPILE=/home/foo/openwrt-toolchain-22.03.4-ramips-mt7621_gc

Re: failed to build u-boot mt7621_rfb_defconfig

Thank you