Add some vk 1.3 extension strings

Note: nVidia has a driver bug with vkGetPrivateData. But swiftshader
works fine.

Reviewed-by: Aaron Ruby <aruby@blackberry.com>
Acked-by: Yonggang Luo <luoyonggang@gmail.com>
Acked-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27246>

src/gfxstream/guest/vulkan_enc/ResourceTracker.cpp

@@ -1940,6 +1940,9 @@ VkResult ResourceTracker::on_vkEnumerateDeviceExtensionProperties(
         "VK_KHR_create_renderpass2",
         "VK_KHR_imageless_framebuffer",
 #endif
+        // Vulkan 1.3
+        "VK_KHR_synchronization2",
+        "VK_EXT_private_data",
     };
 
     VkEncoder* enc = (VkEncoder*)context;