x86: Add SMBIOS info for Coral

This is required by Chrome OS so that the audio and other unibuild
features work correctly. Add it.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

arch/x86/dts/chromebook_coral.dts

@@ -54,6 +54,14 @@
 		recovery-gpios = <&gpio_nw (-1) GPIO_ACTIVE_LOW>;
 		write-protect-gpios = <&gpio_nw GPIO_75 GPIO_ACTIVE_HIGH>;
 		phase-enforce-gpios = <&gpio_n GPIO_10 GPIO_ACTIVE_HIGH>;
+		smbios {
+			manufacturer = "Google";
+			product = "Coral";
+			version = "rev2";
+			serial = "123456789";
+			sku = "sku3";
+			family = "Google_Coral";
+		};
 	};
 
 	config {