[nrf fromtree] drivers: usb: do not enabled nRF USBREG interrupt

The drivers still use the USBREG HAL driver which enables/disables the
interrupt by itself.

Signed-off-by: Johann Fischer <[email protected]>
(cherry picked from commit a05fd62)

Author: jfischer-no

drivers/usb/device/usb_dc_nrfx.c

@@ -1892,7 +1892,6 @@ static int usb_init(void)
 	IRQ_CONNECT(USBREGULATOR_IRQn,
 		    DT_IRQ(DT_INST(0, nordic_nrf_clock), priority),
 		    nrfx_isr, nrfx_usbreg_irq_handler, 0);
-	irq_enable(USBREGULATOR_IRQn);
 #endif
 
 	static const nrfx_power_config_t power_config = {

drivers/usb/udc/udc_nrf.c

@@ -817,7 +817,6 @@ static int udc_nrf_init(const struct device *dev)
 	IRQ_CONNECT(USBREGULATOR_IRQn,
 		    DT_IRQ(DT_INST(0, nordic_nrf_clock), priority),
 		    nrfx_isr, nrfx_usbreg_irq_handler, 0);
-	irq_enable(USBREGULATOR_IRQn);
 #endif
 
 	IRQ_CONNECT(DT_INST_IRQN(0), DT_INST_IRQ(0, priority),
@@ -838,9 +837,6 @@ static int udc_nrf_shutdown(const struct device *dev)
 
 	nrfx_power_usbevt_disable();
 	nrfx_power_usbevt_uninit();
-#ifdef CONFIG_HAS_HW_NRF_USBREG
-	irq_disable(USBREGULATOR_IRQn);
-#endif
 
 	return 0;
 }