Fix build error when musl was upgreaded to v1.2.3

Issue: I6E1HI
Test: Build & Boot Devices
Signed-off-by: Ndhy308 <tony.gan@huawei.com>

ai/mindspore/src/ohos_c_api_test_mslite.cpp

@@ -146,7 +146,7 @@ void ModelPredict(OH_AI_ModelHandle model, OH_AI_ContextHandle context, string m
     printf("==========GetInputs==========\n");
     OH_AI_TensorHandleArray inputs = OH_AI_ModelGetInputs(model);
     ASSERT_NE(inputs.handle_list, nullptr);
-    if (shape_infos.shape_num != NULL) {
+    if (shape_infos.shape_num != 0) {
         printf("==========Resizes==========\n");
         OH_AI_Status resize_ret = OH_AI_ModelResize(model, inputs, &shape_infos, inputs.handle_num);
         printf("==========Resizes return code:%d\n", resize_ret);
@@ -1626,4 +1626,4 @@ HWTEST(MSLiteTest, OHOS_Compatible_0001, Function | MediumTest | Level1) {
     ASSERT_EQ(ret, OH_AI_STATUS_SUCCESS);
     CompareResult(outputs, "ml_face_isface");
     OH_AI_ModelDestroy(&model);
-}
\ No newline at end of file
+}