soc/amd/stoneyridge: Increase preram console size

Increase the default setting to add more CAR space for the early
console.  This avoids truncation of the log.

BUG=b:64980233

Change-Id: Ia11d1c6c186a7025510c240206743ebe8d741461
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/21186
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed