Make sure spin flipper code in rfamp.c is initialised

Fixed drive bugs in lakeshore drivers.
r3071 | ffr | 2011-02-25 18:27:31 +1100 (Fri, 25 Feb 2011) | 2 lines

site_ansto/ansto_sctdriveadapter.c

@@ -108,6 +108,7 @@ static long SCTDRIVSetValue(void *data, SConnection *pCon, float val){
     v.dataType = HIPFLOAT;
     v.v.doubleValue = (double)val;
     SetHdbProperty(self->write_node,"writestatus", "start");
+    SetHdbProperty(self->write_node,"driving", "1");
     status = SetHipadabaPar(self->write_node, v, pCon);
     if(status == 1){
     	return OKOK;