v3dv: Enable (leased) direct display extensions.

Enable support for the following extensions, which are already supported
by the driver and shared wsi code, and were just missing enables inside
v3dv_device:

VK_EXT_direct_mode_display, VK_EXT_acquire_drm_display,
VK_EXT_acquire_xlib_display.

Successfully tested on RPi 400, RaspberryPi OS 11, with X11 RandR output
leasing to lease a RandR output and use it for direct display mode.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21529>

src/broadcom/vulkan/v3dv_device.c

@@ -90,6 +90,8 @@ static const struct vk_instance_extension_table instance_extensions = {
 #ifdef VK_USE_PLATFORM_DISPLAY_KHR
    .KHR_display                         = true,
    .KHR_get_display_properties2         = true,
+   .EXT_direct_mode_display             = true,
+   .EXT_acquire_drm_display             = true,
 #endif
    .KHR_external_fence_capabilities     = true,
    .KHR_external_memory_capabilities    = true,
@@ -108,6 +110,9 @@ static const struct vk_instance_extension_table instance_extensions = {
 #endif
 #ifdef VK_USE_PLATFORM_XLIB_KHR
    .KHR_xlib_surface                    = true,
+#endif
+#ifdef VK_USE_PLATFORM_XLIB_XRANDR_EXT
+   .EXT_acquire_xlib_display            = true,
 #endif
    .EXT_debug_report                    = true,
    .EXT_debug_utils                     = true,