Improve the frontend tflite _test_rsqrt test to support tflite 2.6 (#9888)
Improve the frontend tflite _test_rsqrt test to support tflite 2.6 (#9888)

Updated the test quantized graph creation to support tflite 2.6
dmlc/tvm,dmlc/tvm,dmlc/tvm,dmlc/tvm,dmlc/tvm,dmlc/tvm,dmlc/tvm,dmlc/tvm,dmlc/tvm