mb/google: Move ECFW_RW setting for non-ChromeEC boards

The boolean is stored in ChromeOS NVS, not GNVS.

Change-Id: I5c424a052d484228a456f8f0ad4fb0bed3165e09
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50877
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/vendorcode/google/chromeos/chromeos.h

@@ -30,6 +30,7 @@ void mainboard_prepare_cr50_reset(void);
 void cbmem_add_vpd_calibration_data(void);
 void chromeos_set_me_hash(u32*, int);
 void chromeos_set_ramoops(void *ram_oops, size_t size);
+void chromeos_set_ecfw_rw(void);
 
 /**
  * get_dsm_calibration_from_key - Gets value related to DSM calibration from VPD

src/vendorcode/google/chromeos/gnvs.c

@@ -76,7 +76,7 @@ void chromeos_set_ramoops(void *ram_oops, size_t size)
 	chromeos_acpi->ramoops_len = size;
 }
 
-void gnvs_set_ecfw_rw(void)
+void chromeos_set_ecfw_rw(void)
 {
 	if (!chromeos_acpi)
 		return;