x86: Provide default SMBIOS manufacturer/product

Add a file containing defaults for these, using the existing CONFIG
options. This file must be included with #include since it needs to
be passed through the C preprocessor.

Enable the driver for all x86 boards that generate SMBIOS tables.
Disable it for coral since it has its own driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: reword the commit message a little bit]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/Kconfig b/arch/Kconfig
index 3b9fcce..041e179 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -198,6 +198,8 @@
 	imply RTC_MC146818
 	imply IRQ
 	imply ACPIGEN if !QEMU
+	imply SYSINFO if GENERATE_SMBIOS_TABLE
+	imply SYSINFO_SMBIOS if GENERATE_SMBIOS_TABLE
 
 	# Thing to enable for when SPL/TPL are enabled: SPL
 	imply SPL_DM