AGESA f15 vendorcode: Split to Makefile.inc files

Change-Id: I1b7d7c017a4dfd93c5befbc0d5858278eacc6c89
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/21264
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
52 files changed