ms_{srs,amarisoft}: Support selecting tgz based on run_node's run label

Change-Id: I2c4cab02fa34c7acc7e57c3fec5a42c26d2a9208
diff --git a/src/osmo_gsm_tester/obj/ms_amarisoft.py b/src/osmo_gsm_tester/obj/ms_amarisoft.py
index 5067048..e99cca3 100644
--- a/src/osmo_gsm_tester/obj/ms_amarisoft.py
+++ b/src/osmo_gsm_tester/obj/ms_amarisoft.py
@@ -108,7 +108,7 @@
         if self._bin_prefix is None:
             self._bin_prefix = os.getenv('AMARISOFT_PATH_UE', None)
             if self._bin_prefix == None:
-                self._bin_prefix  = self.testenv.suite().trial().get_inst('amarisoftue')
+                self._bin_prefix  = self.testenv.suite().trial().get_inst('amarisoftue', self._run_node.run_label())
         return self._bin_prefix
 
     def cleanup(self):