DMI: create dmi_get_slot()

This simply allows other sub-systems (such as ACPI)
to access and print out slots in static dmi_ident[].

Signed-off-by: Len Brown <len.brown@intel.com>

drivers/firmware/dmi_scan.c

@@ -470,3 +470,11 @@ int dmi_get_year(int field)
 	return year;
 }
 
+/**
+ *	dmi_get_slot - return dmi_ident[slot]
+ *	@slot:	index into dmi_ident[]
+ */
+char *dmi_get_slot(int slot)
+{
+	return(dmi_ident[slot]);
+}