Add new phytest test stage for 60MHz 2x2

ci-scripts/xml_files/gnb_phytest_usrp_run_60_2x2.xml

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+ Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ contributor license agreements.  See the NOTICE file distributed with
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+-->
+<testCaseList>
+  <htmlTabRef>gNB-PHY-Test-60-2x2</htmlTabRef>
+  <htmlTabName>Timing phytest 60 MHz 2x2</htmlTabName>
+  <htmlTabIcon>tasks</htmlTabIcon>
+  <repeatCount>1</repeatCount>
+  <TestCaseRequestedList>
+290101 000001 290109
+  </TestCaseRequestedList>
+  <TestCaseExclusionList></TestCaseExclusionList>
+
+  <testCase id="290101">
+    <class>Initialize_eNB</class>
+    <desc>Initialize gNB USRP</desc>
+    <Initialize_eNB_args>-O ci-scripts/conf_files/gnb.band78.tm1.162PRB.usrpn300.conf --phy-test --gNBs.[0].pdsch_AntennaPorts_XP 2 --RUs.[0].nb_tx 2 --RUs.[0].nb_rx 2 -q -U 787200 -T 162 -t 23 -D 130175 -m 23 -M 162 -l 2 --usrp-tx-thread-config 1 --log_config.global_log_options level,nocolor,time</Initialize_eNB_args>
+    <rt_stats_cfg>datalog_rt_stats.2x2.yaml</rt_stats_cfg>
+    <air_interface>NR</air_interface>
+    <USRP_IPAddress>192.168.20.2</USRP_IPAddress>
+    <cmd_prefix>numactl --cpunodebind=netdev:enp94s0f0 --membind=netdev:enp94s0f0</cmd_prefix>
+  </testCase>
+
+  <testCase id="000001">
+    <class>IdleSleep</class>
+    <desc>Sleep</desc>
+    <idle_sleep_time_in_sec>60</idle_sleep_time_in_sec>
+  </testCase>
+
+
+  <testCase id="290109">
+    <class>Terminate_eNB</class>
+    <desc>Terminate gNB</desc>
+    <air_interface>NR</air_interface>
+  </testCase>
+
+</testCaseList>