northbridge/amd/stoney: Add FT4 package

Add package options to the CPU Kconfig that may be selected by the
mainboard's Kconfig file.  Stoney Ridge is available in FP4 and FT4
packages and each requires a unique binaryPI image.  Default to the
correct blob used by the northbridge by looking at the CPU's package.

Also modify Gardenia to select the right package.

See the Infrastructure Roadmap for FP4 (#53555) and FT4 (#55349) for
additional details for the packages.

Original-Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Original-Reviewed-by: Marc Jones <marcj303@gmail.com>
(cherry picked from commit 7b8ed7b732b7cf5503862c5edc6537d672109aec)

Change-Id: I7bb15bc4c85c5b4d3d5a6c926c4bc346a282ef27
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/18989
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
8 files changed