Don't let expat and/or python show the compile process on stdout.
Instead direct this output to crossgcc-build.log.
Fix the logfile path for python.
Change-Id: I431dabf6955d7eef3e54c96d0fb11b92d1cee96d
Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-on: http://review.coreboot.org/1667
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>