Fix scheduler prescaler calculation (#630)

* Fix prescaler calculation

* formatting (this looks so bad)

* Create hotfix-sched-prescaler.md

Author: victor-Lopez25

.changesets/hotfix-sched-prescaler.md

@@ -0,0 +1,2 @@
+release: patch
+summary: fix prescaler calculation in scheduler

Src/HALAL/Services/Time/Scheduler.cpp

@@ -60,7 +60,8 @@ void Scheduler_start(void) {
 
     uint16_t prescaler =
         (uint16_t)(ST_LIB::TimerDomain::get_timer_frequency(Scheduler_global_timer) /
-                   Scheduler::FREQUENCY);
+                   Scheduler::FREQUENCY) -
+        1;
     Scheduler_global_timer->PSC = prescaler;
     Scheduler_global_timer->ARR = 0;
     Scheduler_global_timer->DIER |= LL_TIM_DIER_UIE;