cpu/intel/: Fix regression with smmrelocate

Fix regression with commit d53fd70 intel/smm/gen1: Use smm_subregion().

The bitmask on SMRR register parameter was inverted for
selected models.

Change-Id: Ia572ca3bdd4da371985691b5d249f998382fbe48
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35780
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/cpu/intel/smm/gen1/smmrelocate.c

@@ -121,7 +121,7 @@ static void fill_in_relocation_params(struct smm_relocation_params *params)
 
 	/* On model_6fx and model_1067x bits [0:11] on smrr_base are reserved */
 	if (cpu_has_alternative_smrr())
-		params->smrr_base.lo &= ~rmask;
+		params->smrr_base.lo &= rmask;
 
 	smm_subregion(SMM_SUBREGION_CHIPSET, &params->ied_base, &params->ied_size);
 }