syscall: don't build libcall_bsd.go on solaris

This new file was based on master sources that are built for *BSD
but not Solaris

Change-Id: Ie170daa4c572e112fe332cc6505eff974f01ec69
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/266017
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
1 file changed