vbox: remove extra spaces from function headers

Also fix the curly brace to pass sytnax-check.

src/vbox/vbox_common.c

@@ -150,7 +150,8 @@ static bool vboxGetDeviceDetails(const char *deviceName,
                                  PRUint32 storageBus,
                                  PRInt32 *deviceInst,
                                  PRInt32 *devicePort,
-                                 PRInt32    *deviceSlot) {
+                                 PRInt32 *deviceSlot)
+{
     int total = 0;
     PRUint32 maxPortPerInst = 0;
     PRUint32 maxSlotPerPort = 0;

src/vbox/vbox_tmpl.c

@@ -626,7 +626,8 @@ static bool vboxGetDeviceDetails(const char *deviceName,
                                  PRUint32 storageBus,
                                  PRInt32 *deviceInst,
                                  PRInt32 *devicePort,
-                                 PRInt32    *deviceSlot) {
+                                 PRInt32 *deviceSlot)
+{
     int total = 0;
     PRUint32 maxPortPerInst = 0;
     PRUint32 maxSlotPerPort = 0;