Also, remove one missing hardcoded "build" dir in the distclean target,
and clean up files generated by sconfig in 'make clean'.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4880 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1