AP_Vehicle: add AP_ESC_Telem

libraries/AP_Vehicle/AP_Vehicle.h

@@ -37,6 +37,7 @@
 #include <AP_ServoRelayEvents/AP_ServoRelayEvents.h>
 #include <AP_Camera/AP_RunCam.h>
 #include <AP_Hott_Telem/AP_Hott_Telem.h>
+#include <AP_ESC_Telem/AP_ESC_Telem.h>
 
 class AP_Vehicle : public AP_HAL::HAL::Callbacks {
 
@@ -217,6 +218,8 @@ protected:
     AP_Hott_Telem hott_telem;
 #endif
 
+    AP_ESC_Telem esc_telem;
+
     static const struct AP_Param::GroupInfo var_info[];
     static const struct AP_Scheduler::Task scheduler_tasks[];