Airframes: rename normal S500 to generic and remove PX4 defaults

ROMFS/px4fmu_common/init.d/airframes/4014_s500

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# @name S500
+# @name S500 Generic
 #
 # @type Quadrotor x
 # @class Copter
@@ -15,12 +15,10 @@ set PWM_OUT 1234
 
 if [ $AUTOCNF = yes ]
 then
-	param set MC_ROLL_P 6.5
 	param set MC_ROLLRATE_P 0.18
-	param set MC_ROLLRATE_I 0.15
-	param set MC_ROLLRATE_D 0.003
-	param set MC_PITCH_P 6.5
 	param set MC_PITCHRATE_P 0.18
+	param set MC_ROLLRATE_I 0.15
 	param set MC_PITCHRATE_I 0.15
+	param set MC_ROLLRATE_D 0.003
 	param set MC_PITCHRATE_D 0.003
 fi