ports/stm32: Fix USB VBUS sensing for newer STM32F4/F7 HAL versions.

The USB_OTG_GCCFG register bit definitions changed between older and newer
STM32F4/F7 HAL versions:
- Older chips use: NOVBUSSENS, VBUSBSEN, VBUSASEN
- Newer chips use: VBDEN

This adds conditional compilation to support both register naming schemes,
allowing TinyUSB builds to compile on all STM32F4/F7 variants.

Signed-off-by: Andrew Leech <[email protected]>

Author: pi-anl

ports/stm32/usbd_conf.c

@@ -181,6 +181,17 @@ void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
         // Configure VBUS sensing for TinyUSB on STM32F4/F7 which have separate GCCFG register
         // The DWC2 PHY init only sets PWRDWN bit, but doesn't configure VBUS sensing
         #if defined(STM32F4) || defined(STM32F7)
+        #if defined(USB_OTG_GCCFG_VBDEN)
+        // Newer STM32F4/F7 with VBDEN register bit
+        #if defined(MICROPY_HW_USB_VBUS_DETECT_PIN)
+        // Enable VBUS detection
+        USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN;
+        #else
+        // Disable VBUS detection (force VBUS valid)
+        USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_VBDEN;
+        #endif
+        #else
+        // Older STM32F4 with separate VBUSASEN/VBUSBSEN/NOVBUSSENS register bits
         #if defined(MICROPY_HW_USB_VBUS_DETECT_PIN)
         // Enable VBUS sensing in "B device" mode (using PA9)
         USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_NOVBUSSENS;
@@ -192,6 +203,7 @@ void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
         #endif
         #endif
         #endif
+        #endif
 
         #if MICROPY_HW_STM_USB_STACK
         return;