ACPI: Drop typedef global_nvs_t

Bring all GNVS related initialisation function to global
scope to force identical signatures. Followup work is
likely to remove some as duplicates.

Change-Id: Id4299c41d79c228f3d35bc7cb9bf427ce1e82ba1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42489
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/cannonlake/acpi.c

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <acpi/acpi.h>
+#include <acpi/acpi_gnvs.h>
 #include <acpi/acpigen.h>
 #include <arch/smp/mpspec.h>
 #include <cbmem.h>
@@ -182,7 +183,7 @@ uint32_t soc_read_sci_irq_select(void)
 	return read32((void *)pmc_bar + IRQ_REG);
 }
 
-void acpi_create_gnvs(struct global_nvs_t *gnvs)
+void acpi_create_gnvs(struct global_nvs *gnvs)
 {
 	const struct soc_intel_cannonlake_config *config;
 	config = config_of_soc();