Adjust the Makefile to look for SPD source Makefile. The current
SPD guard isn't set up correctly and is attempting to build the
APCB with SPD when SPD isn't present.
BUG=b:249988439
TEST=util/abuild/abuild -x -t GOOGLE_MORTHAL --verbose
util/abuild/abuild -x -t GOOGLE_SKYRIM --verbose
util/abuild/abuild -x -t GOOGLE_WINTERHOLD --verbose
Change-Id: I9cf13acb1188309ea6a1e6bdacc37d80b01f70a8
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68018
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
22baa3352c