[TFLite] Support quantized GREATER op in TFLite frontend

Rebasing
Change-Id: If7a6630a08811a0255bbbf80824e0761db4efb17

Change-Id: I33cbaa1fb53a0f272e2e833c3931fcdaa9a26dd5

tests/python/frontend/tflite/test_forward.py

@@ -2215,7 +2215,7 @@ def __test_elemwise(in_data):
                 if None != x[0]
             }
 
-            if math_op is math_ops.equal:
+            if comparison_op:
                 out = math_op(inq_data[0], inq_data[1])
                 out = with_fused_activation_function(out, fused_activation_function)
 
@@ -2415,6 +2415,7 @@ def _test_equal(data, fused_activation_function=None, quantized=False, qnn_op=No
         quantized,
         qnn_op,
         same_qnn_params=True,
+        comparison_op=True,
     )
 
 
@@ -2480,8 +2481,8 @@ def _test_forward_elemwise(testop):
     )
 
 
-def _test_forward_elemwise_quantized(testop):
-    if testop is not _test_equal:
+def _test_forward_elemwise_quantized(testop, comparison_op=False):
+    if not comparison_op:
         testop(
             [
                 np.array(np.random.uniform(0, 255, (3, 6)), dtype=np.uint8),
@@ -2511,6 +2512,7 @@ def _test_elemwise_qnn_out_range(qnn_op):
         _test_maximum: (-112, 111),
         _test_minimum: (-128, 127),
         _test_equal: (-150, 150),
+        _test_greater: (-150, 150),
     }
 
     return qnn_out_range[qnn_op]
@@ -2546,7 +2548,7 @@ def test_all_elemwise():
     _test_forward_elemwise(_test_less)
     _test_forward_elemwise(_test_less_equal)
     _test_forward_elemwise(_test_equal)
-    _test_forward_elemwise_quantized(_test_equal)
+    _test_forward_elemwise_quantized(_test_equal, True)
     _test_forward_elemwise(_test_not_equal)
     if package_version.parse(tf.VERSION) >= package_version.parse("1.14.0"):
         _test_forward_elemwise(_test_floor_divide)