SITL: added SIM_RC_CHANCOUNT parameter

libraries/SITL/SITL.cpp

@@ -121,6 +121,7 @@ const AP_Param::GroupInfo SITL::var_info2[] = {
     AP_GROUPINFO("MAG_DIA",     18, SITL,  mag_diag, 0),
     AP_GROUPINFO("MAG_ODI",     19, SITL,  mag_offdiag, 0),
     AP_GROUPINFO("MAG_ORIENT",  20, SITL,  mag_orient, 0),
+    AP_GROUPINFO("RC_CHANCOUNT",21, SITL,  rc_chancount, 16),
     AP_GROUPEND
 };
     

libraries/SITL/SITL.h

@@ -134,6 +134,7 @@ public:
     AP_Float batt_voltage; // battery voltage base
     AP_Float accel_fail;  // accelerometer failure value
     AP_Int8  rc_fail;     // fail RC input
+    AP_Int8  rc_chancount; // channel count
     AP_Int8  baro_disable; // disable simulated barometer
     AP_Int8  float_exception; // enable floating point exception checks
     AP_Int8  flow_enable; // enable simulated optflow