Merge pull request #7067 from mikeller/fix_hott_textmode_reset

Added guard against repetitive task resetting to hott text mode.

src/main/telemetry/hott.c

@@ -483,6 +483,7 @@ static void hottTextmodeStop()
     // Set back to avoid slow down of the FC
     if (telemetryTaskPeriod > 0) {
         rescheduleTask(TASK_TELEMETRY, telemetryTaskPeriod);
+        telemetryTaskPeriod = 0;
     }
 
     rxSchedule = HOTT_RX_SCHEDULE;