radv: add support for vk_x11_override_min_image_count

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

src/amd/vulkan/radv_device.c

@@ -558,6 +558,7 @@ static const char radv_dri_options_xml[] =
 DRI_CONF_BEGIN
 	DRI_CONF_SECTION_PERFORMANCE
 		DRI_CONF_ADAPTIVE_SYNC("true")
+		DRI_CONF_VK_X11_OVERRIDE_MIN_IMAGE_COUNT(0)
 	DRI_CONF_SECTION_END
 DRI_CONF_END;