soc/amd/stoneyridge: Add tseg size to Kconfig

Add a SMM_TSEG_SIZE symbol that can be used in top of memory
calculations.

Change-Id: I26f3b06f85f0cf5613656c1d5df55bd9ea4bbbbc
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/19750
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
1 file changed