soc/amd/stoney: Allow alternative placement for AMD FW directory

Allow the AMD FW directory to be placed at one of the alternative
locations within the ROM.

TEST=Assign PSP firmware location, build & test.

Change-Id: I9c95b9805c60ab6204750f7929049c7382e0c6cd
Signed-off-by: Martin Roth <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Aaron Durbin <>
Reviewed-by: Marshall Dawson <>
2 files changed