srsue: start_locally(): Fix missing class name in attribute access

Change-Id: Iab4196b12ee12a06ba2129053f2291c1e4c284ff
diff --git a/src/osmo_gsm_tester/srs_ue.py b/src/osmo_gsm_tester/srs_ue.py
index 2dc5ddf..398fea7 100644
--- a/src/osmo_gsm_tester/srs_ue.py
+++ b/src/osmo_gsm_tester/srs_ue.py
@@ -177,7 +177,7 @@
     def start_locally(self):
         inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst('srslte')))
 
-        binary = inst.child('bin', BINFILE)
+        binary = inst.child('bin', srsUE.BINFILE)
         if not os.path.isfile(binary):
             raise log.Error('Binary missing:', binary)
         lib = inst.child('lib')