bsps/x86_64: Address unused parameter warnings

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

bsps/x86_64/amd64/clock/clock.c

@@ -54,6 +54,8 @@ extern void Clock_isr(void *param);
 
 static uint32_t amd64_clock_get_timecount(struct timecounter *tc)
 {
+  (void) tc;
+
   return Clock_driver_ticks;
 }
 

bsps/x86_64/amd64/clock/eficlock.c

@@ -59,6 +59,9 @@ efi_clock_tick_notify(EFI_EVENT e, VOID* ctx);
 EFIAPI void
 efi_clock_tick_notify(EFI_EVENT e, VOID* ctx)
 {
+    (void) e;
+    (void) ctx;
+
     Clock_isr(NULL);
 }
 

bsps/x86_64/amd64/console/efigop.c

@@ -95,6 +95,9 @@ frame_buffer_initialize
  rtems_device_minor_number minor,
  void *arg)
 {
+    (void) minor;
+    (void) arg;
+
     rtems_status_code status;
 
     status = rtems_io_register_name(FRAMEBUFFER_DEVICE_0_NAME, major, 0);
@@ -117,6 +120,10 @@ frame_buffer_open
  rtems_device_minor_number minor,
  void *arg)
 {
+    (void) major;
+    (void) minor;
+    (void) arg;
+
     if (_Atomic_Flag_test_and_set(&driver_mutex, ATOMIC_ORDER_ACQUIRE) != 0) {
         printf("EFI/GOP: error: can't lock device mutex.\n" );
         return RTEMS_UNSATISFIED;
@@ -136,6 +143,10 @@ frame_buffer_close
  rtems_device_minor_number minor,
  void *arg)
 {
+    (void) major;
+    (void) minor;
+    (void) arg;
+
     _Atomic_Flag_clear( &driver_mutex, ATOMIC_ORDER_RELEASE );
     return RTEMS_SUCCESSFUL;
 }
@@ -146,6 +157,9 @@ frame_buffer_read
  rtems_device_minor_number minor,
  void *arg)
 {
+    (void) major;
+    (void) minor;
+
     rtems_libio_rw_args_t* rw_args = (rtems_libio_rw_args_t*)arg;
 
     rw_args->bytes_moved =
@@ -163,6 +177,9 @@ frame_buffer_write
  rtems_device_minor_number minor,
  void *arg)
 {
+    (void) major;
+    (void) minor;
+
     rtems_libio_rw_args_t* rw_args = (rtems_libio_rw_args_t*)arg;
 
     rw_args->bytes_moved =
@@ -180,6 +197,9 @@ frame_buffer_control
  rtems_device_minor_number minor,
  void *arg)
 {
+    (void) major;
+    (void) minor;
+
     rtems_libio_ioctl_args_t* args = (rtems_libio_ioctl_args_t*)arg;
 
     switch (args->command) {

bsps/x86_64/amd64/console/outch.c

@@ -46,6 +46,9 @@ static void wr_cursor(
   int           c
 )
 {
+  (void) r;
+  (void) c;
+
   /* dummy function for now */
 }
 

bsps/x86_64/amd64/interrupts/idt.c

@@ -159,6 +159,8 @@ void bsp_interrupt_facility_initialize(void)
 
 rtems_status_code bsp_interrupt_vector_disable(rtems_vector_number vector)
 {
+  (void) vector;
+
   /* XXX: Should be implemented once I/O APIC support is added */
   return RTEMS_SUCCESSFUL;
 }
@@ -168,6 +170,8 @@ rtems_status_code bsp_interrupt_set_priority(
   uint32_t priority
 )
 {
+  (void) priority;
+
   bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
   return RTEMS_UNSATISFIED;
 }
@@ -187,6 +191,9 @@ rtems_status_code bsp_interrupt_get_attributes(
   rtems_interrupt_attributes *attributes
 )
 {
+  (void) vector;
+  (void) attributes;
+
   return RTEMS_SUCCESSFUL;
 }
 
@@ -226,6 +233,8 @@ rtems_status_code bsp_interrupt_vector_is_enabled(
 
 rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector)
 {
+  (void) vector;
+
   /* XXX: Should be implemented once I/O APIC support is added */
   return RTEMS_SUCCESSFUL;
 }
@@ -258,6 +267,9 @@ rtems_status_code bsp_interrupt_raise_on(
   uint32_t            cpu_index
 )
 {
+  (void) vector;
+  (void) cpu_index;
+
   bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
   return RTEMS_UNSATISFIED;
 }

bsps/x86_64/amd64/start/bspsmp.c

@@ -88,6 +88,8 @@ static bool wait_for_ap(uint32_t timeout_ms)
 
 static void bsp_inter_processor_interrupt(void* arg)
 {
+  (void) arg;
+
   _SMP_Inter_processor_interrupt_handler(_Per_CPU_Get());
   lapic_eoi();
 }
@@ -118,6 +120,8 @@ uint32_t _CPU_SMP_Initialize(void)
 
 void _CPU_SMP_Finalize_initialization(uint32_t cpu_count)
 {
+  (void) cpu_count;
+
   rtems_status_code sc = rtems_interrupt_handler_install(
     BSP_VECTOR_IPI,
     "IPI",