soc/intel/baytrail,braswell: Drop TOLM from GNVS

It's a static value that is neither referenced from SMI handler
nor needs to be updated on S3 resume path.

Change-Id: Ife6611a11e5627d39d59e0e93af9aa2d87885601
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50121
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/baytrail/acpi.c

@@ -60,9 +60,6 @@ void soc_fill_gnvs(struct global_nvs *gnvs)
 {
 	/* Set unknown wake source */
 	gnvs->pm1i = -1;
-
-	/* Top of Low Memory (start of resource allocation) */
-	gnvs->tolm = nc_read_top_of_low_memory();
 }
 
 int acpi_sci_irq(void)