[VitisAI] add registered custom op for perf test (#21336)

### Description
<!-- Describe your changes. -->
Register for custom op when testing the performance


### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
This is needed for providers to test their implementation

onnxruntime/test/perftest/command_args_parser.cc

@@ -144,6 +144,7 @@ namespace perftest {
       "\t-Z [Force thread to stop spinning between runs]: disallow thread from spinning during runs to reduce cpu usage.\n"
       "\t-n [Exit after session creation]: allow user to measure session creation time to measure impact of enabling any initialization optimizations.\n"
       "\t-l Provide file as binary in memory by using fopen before session creation.\n"
+      "\t-R [Register custom op]: allow user to register custom op by .so or .dll file.\n"
       "\t-h: help\n");
 }
 #ifdef _WIN32
@@ -206,7 +207,7 @@ static bool ParseSessionConfigs(const std::string& configs_string,
 
 /*static*/ bool CommandLineParser::ParseArguments(PerformanceTestConfig& test_config, int argc, ORTCHAR_T* argv[]) {
   int ch;
-  while ((ch = getopt(argc, argv, ORT_TSTR("m:e:r:t:p:x:y:c:d:o:u:i:f:F:S:T:C:AMPIDZvhsqznl"))) != -1) {
+  while ((ch = getopt(argc, argv, ORT_TSTR("m:e:r:t:p:x:y:c:d:o:u:i:f:F:S:T:C:AMPIDZvhsqznlR:"))) != -1) {
     switch (ch) {
       case 'f': {
         std::basic_string<ORTCHAR_T> dim_name;
@@ -393,6 +394,9 @@ static bool ParseSessionConfigs(const std::string& configs_string,
       case 'l':
         test_config.model_info.load_via_path = true;
         break;
+      case 'R':
+        test_config.run_config.register_custom_op_path = optarg;
+        break;
       case '?':
       case 'h':
       default:

onnxruntime/test/perftest/ort_test_session.cc

@@ -636,6 +636,10 @@ select from 'TF8', 'TF16', 'UINT8', 'FLOAT', 'ITENSOR'. \n)");
     session_options.AddConfigEntry(kOrtSessionOptionsConfigForceSpinningStop, "1");
   }
 
+  if (!performance_test_config.run_config.register_custom_op_path.empty()) {
+    session_options.RegisterCustomOpsLibrary(performance_test_config.run_config.register_custom_op_path.c_str());
+  }
+
   if (performance_test_config.run_config.execution_mode == ExecutionMode::ORT_PARALLEL && performance_test_config.run_config.inter_op_num_threads > 0) {
     fprintf(stdout, "Setting inter_op_num_threads to %d\n", performance_test_config.run_config.inter_op_num_threads);
     session_options.SetInterOpNumThreads(performance_test_config.run_config.inter_op_num_threads);

onnxruntime/test/perftest/test_configuration.h

@@ -65,6 +65,7 @@ struct RunConfig {
   bool disable_spinning = false;
   bool disable_spinning_between_run = false;
   bool exit_after_session_creation = false;
+  std::basic_string<ORTCHAR_T> register_custom_op_path;
 };
 
 struct PerformanceTestConfig {