[FL-1009, FL-1118] Better initialization sequence and V8 hardware support (#406)

* Interrupt manager: add memory barriers.
* ISRs: remove TIM17 dead code.
* API HAL Delay: rename initialization routine and move to API-HAL
* Main: move FURI initialization to the start.
* API HAL GPIO: drop CC1101 shenanigans, COMP inversion for new boards.
* IButton: migrate Cyfral and Metakom to RFID comp routine, make it compatible with new boards.
* RFID: Better keyboard handling and shutdown routines

core/api-hal/api-interrupt-mgr.c

@@ -36,11 +36,9 @@ void api_interrupt_add(InterruptCallback callback, InterruptType type, void* con
         item->callback = callback;
         item->type = type;
         item->context = context;
+        asm volatile("dmb" : : : "memory");
         item->ready = true;
 
-        // TODO remove on app exit
-        //flapp_on_exit(api_interrupt_remove, callback);
-
         osMutexRelease(interrupt_mutex);
     }
 }
@@ -77,6 +75,7 @@ void api_interrupt_enable(InterruptCallback callback, InterruptType type) {
                 // if the iterator is equal to our element
                 if(it->current->data.callback == callback) {
                     it->current->data.ready = true;
+                    asm volatile("dmb" : : : "memory");
                 }
             }
         }
@@ -96,6 +95,7 @@ void api_interrupt_disable(InterruptCallback callback, InterruptType type) {
                 // if the iterator is equal to our element
                 if(it->current->data.callback == callback) {
                     it->current->data.ready = false;
+                    asm volatile("dmb" : : : "memory");
                 }
             }
         }