Modified the integtests to take into account Michal's suggestions in DUNE-DAQ/integrationtest#161

Author: Kurt Biery

integtest/change_rate_test.py

@@ -82,7 +82,7 @@
 conf_dict.op_env = "integtest"
 conf_dict.config_session_name = "changerate"
 conf_dict.tpg_enabled = False
-utility_functions.set_RTCM_trigger_params(conf_dict, trigger_rate=1.0,
+utility_functions.set_rtcm_trigger_params(conf_dict, trigger_rate=1.0,
                                           readout_window_before_ticks=readout_window_time_before,
                                           readout_window_after_ticks=readout_window_time_after)