/* Unregisters a callback. 
Unregisters the user callback and disables the interrupt.  */
void aon_sleep_timer_unregister_callback(void)
/* Unregisters a callback. 
Unregisters the user callback and disables the interrupt.  */
void aon_sleep_timer_unregister_callback(void)
{
	NVIC_DisableIRQ(AON_SLEEP_TIMER0_IRQn);
	aon_sleep_timer_callback = NULL;
}