Fix value on SMD battery

Author: nseidle

Symbols/SparkFun-Battery.kicad_sym

@@ -22,7 +22,7 @@
 				(justify left)
 			)
 		)
-		(property "Value" "6.8mm_ML414H"
+		(property "Value" "ML414H"
 			(at 2.54 0 0)
 			(effects
 				(font