Add function timerAttachInterruptFlag (espressif#7809)

Author: davidk88

cores/esp32/esp32-hal-timer.c

@@ -221,11 +221,15 @@ bool IRAM_ATTR timerFnWrapper(void *arg){
     return false;
 }
 
-void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge){
+void timerAttachInterruptFlag(hw_timer_t *timer, void (*fn)(void), bool edge, int intr_alloc_flags){
     if(edge){
         log_w("EDGE timer interrupt is not supported! Setting to LEVEL...");
     }
-    timer_isr_callback_add(timer->group, timer->num, timerFnWrapper, fn, 0);
+    timer_isr_callback_add(timer->group, timer->num, timerFnWrapper, fn, intr_alloc_flags);
+}
+
+void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge){
+    timerAttachInterruptFlag(timer, fn, edge, 0);
 }
 
 void timerDetachInterrupt(hw_timer_t *timer){

cores/esp32/esp32-hal-timer.h

@@ -36,6 +36,7 @@ void timerEnd(hw_timer_t *timer);
 void timerSetConfig(hw_timer_t *timer, uint32_t config);
 uint32_t timerGetConfig(hw_timer_t *timer);
 
+void timerAttachInterruptFlag(hw_timer_t *timer, void (*fn)(void), bool edge, int intr_alloc_flags);
 void timerAttachInterrupt(hw_timer_t *timer, void (*fn)(void), bool edge);
 void timerDetachInterrupt(hw_timer_t *timer);