ramips: add diag support for RT-N15 and PWH2004

Also sort the board names alphabetically.

SVN-Revision: 27478

target/linux/ramips/base-files/etc/diag.sh

@@ -36,18 +36,24 @@ get_status_led() {
 	fonera20n)
 		status_led="fonera20n:green:power"
 		;;
-	v22rw-2x2)
-		status_led="v22rw-2x2:green:security"
-		;;
-	whr-g300n)
-		status_led="whr-g300n:green:router"
-		;;
 	hw550-3g)
 		status_led="hw550-3g:green:status"
 		;;
 	mofi3500-3gn)
 		status_led="mofi3500-3gn:green:status"
 		;;
+	pwh2004)
+		status_led="pwh2004:green:power"
+		;;
+	rt-n15)
+		status_led="rt-n15:blue:power"
+		;;
+	v22rw-2x2)
+		status_led="v22rw-2x2:green:security"
+		;;
+	whr-g300n)
+		status_led="whr-g300n:green:router"
+		;;
 	esac
 }