CONFIGURE: Update config.* to latest version

[lephilousophe]

New version handles Darwin arm64

[criezy]

Building works fine on a mac M1 both with and without this change. So it's fine with me.
Can you clarify what are the benefit? The only difference I have noticed is that the host CPU architecture is recognised as aarch64 instead of arm, but this doesn't seem to make much of a difference in the end.

[lephilousophe]

It's just this.
As @sev- already updated this code on a regular basis, I thought it was fine to do it but buildbot can live without it.
It currently uses aarch64 prefix.

[criezy]

Yes, it's fine to update that code. Merging.