cmd/buildlet: set darwin-amd64-{11,12}_0 hosttype names
cmd/buildlet: set darwin-amd64-{11,12}_0 hosttype names

The hosttype names now include GOOS-GOARCH consistently,
and this adjusts buildlet accordingly.

Also drop the "_0" suffix as of macOS 13; it carries no
useful information.

For golang/go#44505.

Change-Id: Ib78e94f8a335004eeb19f2ddbaf04edaa9a7cb0a
Reviewed-on: https://go-review.googlesource.com/c/build/+/421095
TryBot-Result: Gopher Robot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Dmitri Shuralyov <d181b7fea0ec87c86ba5a890ab716db52498e3ba@google.com>
Run-TryBot: Dmitri Shuralyov <d181b7fea0ec87c86ba5a890ab716db52498e3ba@golang.org>
Auto-Submit: Dmitri Shuralyov <d181b7fea0ec87c86ba5a890ab716db52498e3ba@golang.org>
Reviewed-by: Russ Cox <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@golang.org>

golang/build,golang/build,golang/build,golang/build