SMBIOS: Clarify prompts and help texts for Serial and Version Numbers

Change-Id: If1fa39db79eeecbef90c8695143d2fe2adf2f21a
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3732
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
diff --git a/src/mainboard/Kconfig b/src/mainboard/Kconfig
index a8cf362..fdb0eac 100644
--- a/src/mainboard/Kconfig
+++ b/src/mainboard/Kconfig
@@ -335,18 +335,18 @@
 	def_bool n if !POWER_BUTTON_IS_OPTIONAL && POWER_BUTTON_FORCE_DISABLE
 
 config MAINBOARD_SERIAL_NUMBER
-	string "Serial number"
+	string "SMBIOS Serial Number"
 	depends on GENERATE_SMBIOS_TABLES
 	default "123456789"
         help
-	  Define the used serial number which will be used by SMBIOS tables.
+	  The Serial Number to store in SMBIOS structures.
 
 config MAINBOARD_VERSION
-	string "Version number"
+	string "SMBIOS Version Number"
 	depends on GENERATE_SMBIOS_TABLES
 	default "1.0"
 	help
-	  Define the used version number which will be used by SMBIOS tables.
+	  The Version Number to store in SMBIOS structures.
 
 config MAINBOARD_SMBIOS_MANUFACTURER
 	string "SMBIOS Manufacturer"