cpu/amd: remove .intel_syntax

Replace with the more familiar AT&T syntax.
Tested by sha1sum(1)ing the object files, and checking the objdump that
the code in question was actually compiled.

Change-Id: Ibdc024ad90c178c4846d82c5308a146dd1405165
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/13133
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2 files changed