[MLU]: set numpy random seed for test_hard_sigmoid_op_mlu.py and test_hard_swish_op_mlu.py (#44219)

python/paddle/fluid/tests/unittests/mlu/test_hard_sigmoid_op_mlu.py

@@ -25,7 +25,8 @@ import paddle.fluid as fluid
 import paddle.nn.functional as F
 
 paddle.enable_static()
-SEED = 2021
+SEED = 2022
+np.random.seed(SEED)
 
 
 def ref_hardsigmoid(x, slope=0.166666666666667, offset=0.5):

python/paddle/fluid/tests/unittests/mlu/test_hard_swish_op_mlu.py

@@ -25,7 +25,8 @@ import sys
 sys.path.append("..")
 
 paddle.enable_static()
-SEED = 2020
+SEED = 2021
+np.random.seed(SEED)
 
 
 def scalarToType(val, data_type):