Update load_backend.py

Author: hanjr92

tensorlayerx/backend/ops/load_backend.py

@@ -58,8 +58,8 @@
     import mindspore.context as context
     import os
     os.environ['DEVICE_ID'] = '0'
-    # context.set_context(mode=context.PYNATIVE_MODE, device_target='GPU'),
-    context.set_context(mode=context.PYNATIVE_MODE, device_target='CPU'),
+    context.set_context(mode=context.PYNATIVE_MODE, device_target='GPU'),
+    # context.set_context(mode=context.PYNATIVE_MODE, device_target='CPU'),
     # enable_task_sink=True, enable_loop_sink=True)
     # context.set_context(mode=context.PYNATIVE_MODE, device_target='Ascend')
     sys.stderr.write('Using MindSpore backend.\n')