bsps/powerpc/virtex4: Address unused parameter warnings

Add "(void) param;" annotation to address unused parameter warnings.
Found with GCC's warning -Wunused-parameter.

bsps/powerpc/virtex4/irq/irq_init.c

@@ -49,6 +49,8 @@ rtems_irq_global_settings* BSP_rtems_irq_config;
  */
 static void BSP_irq_nop_func(const rtems_irq_connect_data *unused)
 {
+  (void) unused;
+
   /*
    * nothing to do
    */
@@ -56,6 +58,8 @@ static void BSP_irq_nop_func(const rtems_irq_connect_data *unused)
 
 static void BSP_irq_nop_hdl(void *hdl)
 {
+  (void) hdl;
+
   /*
    * nothing to do
    */
@@ -63,6 +67,8 @@ static void BSP_irq_nop_hdl(void *hdl)
 
 static int BSP_irq_isOn_func(const rtems_irq_connect_data *unused)
 {
+  (void) unused;
+
   /*
    * nothing to do
    */
@@ -78,6 +84,8 @@ static int BSP_irq_isOn_func(const rtems_irq_connect_data *unused)
  */
 void BSP_irqexc_on_fnc(const rtems_irq_connect_data *conn_data)
 {
+  (void) conn_data;
+
   uint32_t msr_value;
   /*
    * get current MSR value
@@ -90,6 +98,8 @@ void BSP_irqexc_on_fnc(const rtems_irq_connect_data *conn_data)
 
 void BSP_irqexc_off_fnc(const rtems_irq_connect_data *unused)
 {
+  (void) unused;
+
   uint32_t msr_value;
   /*
    * get current MSR value
@@ -105,6 +115,8 @@ void BSP_irqexc_off_fnc(const rtems_irq_connect_data *unused)
  */
 static int C_dispatch_irq_handler (BSP_Exception_frame *frame, unsigned int excNum)
 {
+  (void) frame;
+
   /*
    * Handle interrupt
    */
@@ -311,6 +323,8 @@ static rtems_irq_global_settings initialConfig = {
 
 void BSP_rtems_irq_mngt_init(unsigned cpuId)
 {
+  (void) cpuId;
+
   int i;
 
   /*

bsps/powerpc/virtex4/start/dummy_console.c

@@ -15,6 +15,8 @@ rtems_device_driver console_initialize(rtems_device_major_number major,
 
 ssize_t __bsp_memory_write(int minor, const char* buf, size_t len)
 {
+  (void) minor;
+
   const char* const last = buf+len;
   while (buf < last)
   {
@@ -38,6 +40,9 @@ rtems_device_driver console_initialize(rtems_device_major_number major,
                                        rtems_device_minor_number minor,
                                        void*                     arg)
 {
+  (void) minor;
+  (void) arg;
+
   rtems_status_code status;
 
   rtems_termios_initialize();
@@ -63,6 +68,9 @@ rtems_device_driver console_close(rtems_device_major_number major,
                                   rtems_device_minor_number minor,
                                   void*                     arg)
 {
+  (void) major;
+  (void) minor;
+
   return rtems_termios_close(arg);
 }
 
@@ -70,6 +78,9 @@ rtems_device_driver console_read(rtems_device_major_number major,
                                  rtems_device_minor_number minor,
                                  void*                     arg)
 {
+  (void) major;
+  (void) minor;
+
   return rtems_termios_read(arg);
 }
 
@@ -77,6 +88,9 @@ rtems_device_driver console_write(rtems_device_major_number major,
                                   rtems_device_minor_number minor,
                                   void*                     arg)
 {
+  (void) major;
+  (void) minor;
+
   return rtems_termios_write(arg);
 }
 
@@ -84,5 +98,8 @@ rtems_device_driver console_control(rtems_device_major_number major,
                                     rtems_device_minor_number minor,
                                     void*                     arg)
 {
+  (void) major;
+  (void) minor;
+
   return rtems_termios_ioctl(arg);
 }