Set d3d12compute_sm65 for testing halide/Halide#9077

Author: alexreinking

master/master.cfg

@@ -697,7 +697,7 @@ def get_gpu_dsp_targets(builder_type):
         yield "host-opencl", False
 
     if builder_type.handles_d3d12():
-        yield "host-d3d12compute", False
+        yield "host-d3d12compute-d3d12compute_sm65", False
 
     # If we're running on a capable GPU, add all optional feature flags to the vulkan target
     # which are required to get all the correctness tests to pass