Fix USB CORE PCGCCTL Wrong Address

* Fix PCGCCTL bug using address instead of value.
* Fix issue #211

stm/lib/usb_core.c

@@ -1961,7 +1961,7 @@ void USB_OTG_ActiveRemoteWakeup(USB_OTG_CORE_HANDLE *pdev)
       if(pdev->cfg.low_power)
       {
         /* un-gate USB Core clock */
-        power.d32 = USB_OTG_READ_REG32(&pdev->regs.PCGCCTL); // dpgeorge: taking the address here might be wrong...
+        power.d32 = USB_OTG_READ_REG32(pdev->regs.PCGCCTL);
         power.b.gatehclk = 0;
         power.b.stoppclk = 0;
         USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, power.d32);
@@ -1995,7 +1995,7 @@ void USB_OTG_UngateClock(USB_OTG_CORE_HANDLE *pdev)
     if(dsts.b.suspsts == 1)
     {
       /* un-gate USB Core clock */
-      power.d32 = USB_OTG_READ_REG32(&pdev->regs.PCGCCTL); // dpgeorge: taking the address here might be wrong...
+      power.d32 = USB_OTG_READ_REG32(pdev->regs.PCGCCTL);
       power.b.gatehclk = 0;
       power.b.stoppclk = 0;
       USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, power.d32);

stm/lib/usb_dcd_int.c

@@ -352,7 +352,7 @@ static uint32_t DCD_HandleResume_ISR(USB_OTG_CORE_HANDLE *pdev)
   if(pdev->cfg.low_power)
   {
     /* un-gate USB Core clock */
-    power.d32 = USB_OTG_READ_REG32(&pdev->regs.PCGCCTL); // dpgeorge: taking the address here might be wrong...
+    power.d32 = USB_OTG_READ_REG32(pdev->regs.PCGCCTL);
     power.b.gatehclk = 0;
     power.b.stoppclk = 0;
     USB_OTG_WRITE_REG32(pdev->regs.PCGCCTL, power.d32);