soc/amd/picasso/Makefile: use all-y for adding config.c to the build

Since config.c also gets linked into verstage on PSP and not only into
the stages running on the x86 cores, use all-y instead of adding
config.c to all classes separately.

Change-Id: Icacb13e73e80e6f3d8c2141784702fb895daf7db
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48313
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

0 files changed, 0 insertions, 0 deletions