add isr api for usbh_hcd

- void usbh_device_plugged_isr(uint8_t hostid, tusb_speed_t speed);
- void usbh_device_unplugged_isr(uint8_t hostid);

implement port_connect_status_isr

tests/test/support/ehci_controller.c

@@ -76,3 +76,13 @@ void ehci_controller_run(uint8_t hostid)
 
   regs->usb_sts = EHCI_INT_MASK_NXP_ASYNC;
 }
+
+void ehci_controller_device_plug(uint8_t hostid, tusb_speed_t speed)
+{
+  ehci_registers_t* const regs = get_operational_register(hostid);
+
+  regs->usb_sts_bit.port_change_detect = 1;
+  regs->portsc_bit.connect_status_change = 1;
+  regs->portsc_bit.current_connect_status = 1;
+  regs->portsc_bit.nxp_port_speed = speed;
+}

tests/test/support/ehci_controller.h

@@ -56,6 +56,7 @@
 #endif
 
 void ehci_controller_run(uint8_t hostid);
+void ehci_controller_device_plug(uint8_t hostid, tusb_speed_t speed);
 
 #ifdef __cplusplus
  }