[macos_aarch64] configure script fails if GNU uname in PATH

checking build system type... Invalid configuration `arm64-apple-darwin20.2.0': machine `arm64-apple' not recognized
configure: error: /opt/homebrew/bin/bash /Users/nicgas01/jdk/make/autoconf/build-aux/config.sub arm64-apple-darwin20.2.0 failed
configure exiting with result code 1

GNU uname -m prints "arm64" unlike the system uname which prints "arm".