i945: Consolidate common GNVS init

Change-Id: Idc3522807b17e56bdaf8f04b4bd68c6ed9777363
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7110
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)

src/mainboard/getac/p470/acpi_tables.c

@@ -35,10 +35,6 @@
 
 void acpi_create_gnvs(global_nvs_t *gnvs)
 {
-	memset((void *)gnvs, 0, sizeof(*gnvs));
-	gnvs->apic = 1;
-	gnvs->mpen = 1; /* Enable Multi Processing */
-
 	/* Enable COM port(s) */
 	gnvs->cmap = 0x01;
 	gnvs->cmbp = 0x00;