mb/google/hatch: override smbios manufacturer name from CBI

BUG=none
TEST=emerge-hatch coreboot, use ectool to write oem name in
CBI, and checked smbios manufacturer name.

Change-Id: I9be85fbc47031d049b5bd51cfaf6232cab24e9fe
Signed-off-by: Wisley Chen <wisley.chen@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35345
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/mainboard/google/hatch/mainboard.c

@@ -52,3 +52,22 @@ const char *smbios_system_sku(void)
 
 	return sku_str;
 }
+
+const char *smbios_mainboard_manufacturer(void)
+{
+	static char oem_name[32];
+	static const char *manuf;
+
+	if (manuf)
+		return manuf;
+
+	if (google_chromeec_cbi_get_oem_name(&oem_name[0],
+				ARRAY_SIZE(oem_name)) < 0) {
+		printk(BIOS_INFO, "Couldn't obtain OEM name from CBI\n");
+		manuf = CONFIG_MAINBOARD_SMBIOS_MANUFACTURER;
+	} else {
+		manuf = &oem_name[0];
+	}
+
+	return manuf;
+}