soc/amd/stoneyridge: Update AMD firmware placement options

- Don't force the selection of placing the firmware outside of cbfs
when using vboot.
- Set a prompt to allow the option of placing it outside of  cbfs.
- Leave all Kconfig defaults the same.
- Place the AMD firmware directory table in the specified location
even when using the 'outside of cbfs" option.
- Print where the firmware is being placed when placing it outside
of cbfs.

BUG=b:65484600
TEST=Assign PSP firmware location, build & test.  Firmware shows up
inside CBFS.  Set 'outside of cbfs' option, verify firmware gets
written to the correct location.

Change-Id: Ia8258b5c2ecfaaa42d623e3376ec3233115aed58
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/21867
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2 files changed