FHSS: Do not update synch monitor right after superframe change

(cherry picked from commit 99d50ad9d7f8dad80f10c2a4303f4e75ab31a3c2)

Author: Jarkko Paso

source/Service_Libs/fhss/fhss.c

@@ -586,7 +586,7 @@ static int fhss_update_synch_monitor(fhss_structure_t *fhss_structure, const fhs
     /* If superframe changed during synchronization but remaining time to next superframe is high, it is likely that
      * superframe change is not valid anymore. Don't use this Beacon for syncronization monitoring.
      */
-    if (!(super_frame_changed && ((configuration->fhss_superframe_length - remaining_time_own) < CLOSE_TO_SUPERFRAME_LENGTH))) {
+    if ((configuration->fhss_superframe_length - remaining_time_own) > CLOSE_TO_SUPERFRAME_LENGTH) {
         remaining_time_own += (int32_t) configuration->fhss_superframe_length * super_frame_changed;
 
         int32_t prev_synch_fix = (time_to_next_superframe - remaining_time_own);