buildgcc: Show the archive URL

In case of downloading errors, the URL is handy for analyzing the cause.

Change-Id: I6874cdc3c881cfdd52c80f80323536c30723654b
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/10853
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <gaumless@gmail.com>
1 file changed