AP_InternalError: add internal error for out-of-range bitmask ops

libraries/AP_InternalError/AP_InternalError.h

@@ -50,6 +50,7 @@ public:
         spi_fail                    = (1U << 14),
         main_loop_stuck             = (1U << 15),
         gcs_bad_missionprotocol_link= (1U << 16),
+        bitmask_range               = (1U << 17),
     };
 
     void error(const AP_InternalError::error_t error);