gfxstream: Replace GuestUsesAngle nomenclature with GuestVulkanOnly.

As this flag now applies with Linux+Zink as the GL translation as well.

Change-Id: I8f648ebe845a251f7c32479ad7bf87ee02a14ce3
diff --git a/host/virtio-gpu-gfxstream-renderer.cpp b/host/virtio-gpu-gfxstream-renderer.cpp
index e572a90..cc197ed 100644
--- a/host/virtio-gpu-gfxstream-renderer.cpp
+++ b/host/virtio-gpu-gfxstream-renderer.cpp
@@ -2433,7 +2433,7 @@
     GFXSTREAM_SET_FEATURE_ON_CONDITION(
         &features, GlPipeChecksum, false);
     GFXSTREAM_SET_FEATURE_ON_CONDITION(
-        &features, GuestUsesAngle,
+        &features, GuestVulkanOnly,
         (renderer_flags & STREAM_RENDERER_FLAGS_USE_VK_BIT) &&
         !(renderer_flags & STREAM_RENDERER_FLAGS_USE_GLES_BIT));
     GFXSTREAM_SET_FEATURE_ON_CONDITION(