vendorcode/amd: 64bit fixes

Change-Id: I6a0752cf0c0e484e670acca97c4991b5578845fb
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/11081
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
57 files changed