linuxkpi: Declare missing DMI_* enum entries

Reviewed by:	manu
Approved by:	manu
Differential Revision:	https://reviews.freebsd.org/D38532

sys/compat/linuxkpi/common/include/linux/mod_devicetable.h

@@ -36,11 +36,15 @@ enum dmi_field {
 	DMI_BIOS_VENDOR,
 	DMI_BIOS_VERSION,
 	DMI_BIOS_DATE,
+	DMI_BIOS_RELEASE,
+	DMI_EC_FIRMWARE_RELEASE,
 	DMI_SYS_VENDOR,
 	DMI_PRODUCT_NAME,
 	DMI_PRODUCT_VERSION,
 	DMI_PRODUCT_SERIAL,
 	DMI_PRODUCT_UUID,
+	DMI_PRODUCT_SKU,
+	DMI_PRODUCT_FAMILY,
 	DMI_BOARD_VENDOR,
 	DMI_BOARD_NAME,
 	DMI_BOARD_VERSION,
@@ -52,6 +56,7 @@ enum dmi_field {
 	DMI_CHASSIS_SERIAL,
 	DMI_CHASSIS_ASSET_TAG,
 	DMI_STRING_MAX,
+	DMI_OEM_STRING,
 };
 
 struct dmi_strmatch {