imx: Use devicetree for SMBIOS settings on MYiR MYS-6ULX

Add settings and enable the default sysinfo driver so that these can come
from the device tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

arch/arm/dts/imx6ull-myir-mys-6ulx-eval-u-boot.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 Linumiz
+ * Author: Parthiban Nallathambi <parthiban@linumiz.com>
+ */
+
+/ {
+	smbios {
+		compatible = "u-boot,sysinfo-smbios";
+
+		smbios {
+			system {
+				manufacturer = "MYiR";
+			};
+
+			baseboard {
+				manufacturer = "MYiR";
+			};
+
+			chassis {
+				manufacturer = "MYiR";
+			};
+		};
+	};
+};

configs/myir_mys_6ulx_defconfig

@@ -67,4 +67,5 @@ CONFIG_MXC_UART=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
 CONFIG_USB_GADGET=y
-CONFIG_SMBIOS_MANUFACTURER="MYiR"
+CONFIG_SYSINFO=y
+CONFIG_SYSINFO_SMBIOS=y