drm/cirrus/ast/mgag200: fix build without CONFIG_VGA_CONSOLE

Reported-by: Randy Dunlap
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/ast/ast_drv.c

@@ -221,8 +221,10 @@ static struct drm_driver driver = {
 
 static int __init ast_init(void)
 {
+#ifdef CONFIG_VGA_CONSOLE
 	if (vgacon_text_force() && ast_modeset == -1)
 		return -EINVAL;
+#endif
 
 	if (ast_modeset == 0)
 		return -EINVAL;

drivers/gpu/drm/cirrus/cirrus_drv.c

@@ -84,8 +84,10 @@ static struct pci_driver cirrus_pci_driver = {
 
 static int __init cirrus_init(void)
 {
+#ifdef CONFIG_VGA_CONSOLE
 	if (vgacon_text_force() && cirrus_modeset == -1)
 		return -EINVAL;
+#endif
 
 	if (cirrus_modeset == 0)
 		return -EINVAL;

drivers/gpu/drm/mgag200/mgag200_drv.c

@@ -93,8 +93,10 @@ static struct pci_driver mgag200_pci_driver = {
 
 static int __init mgag200_init(void)
 {
+#ifdef CONFIG_VGA_CONSOLE
 	if (vgacon_text_force() && mgag200_modeset == -1)
 		return -EINVAL;
+#endif
 
 	if (mgag200_modeset == 0)
 		return -EINVAL;