soc/amd/common: Remove PSPP override setting

For some reason the PSPP setting was being overwritten in the common
code. Remove the setting and allow the oem customize function to
make the setting.

BUG=b:112020107
TEST= build test

Change-Id: If7f4511a71f725fedd60d33552656850e50d955d
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/27783
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>

src/soc/amd/common/block/pi/agesawrapper.c

@@ -130,8 +130,6 @@ AGESA_STATUS agesawrapper_amdinitearly(void)
 
 	OemCustomizeInitEarly(EarlyParams);
 
-	EarlyParams->GnbConfig.PsppPolicy = PsppDisabled;
-
 	timestamp_add_now(TS_AGESA_INIT_EARLY_START);
 	status = AmdInitEarly(EarlyParams);
 	timestamp_add_now(TS_AGESA_INIT_EARLY_DONE);