mb/google/poppy: Configure GPP_F3 as NC

GPP_F3 is not connected on poppy or any of its variants. This change
configures GPP_F3 as NC on poppy and all the variants.

BUG=b:70160119

Change-Id: I303276ab9546d56c846755fa3a6142978f6b8c92
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/22917
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
4 files changed