ctrl/bsc: Fix copy and paste error and update text

30f1f376383df3ae8d85e96542bf14d174c25d89 introduced new channel
combinations but had a copy and paste error in the description.
The jenkins system didn't run the external tests so this issue
and others were not noticed until now.

Fix the copy and paste and update the test result.
diff --git a/openbsc/tests/ctrl_test_runner.py b/openbsc/tests/ctrl_test_runner.py
index df2e66c..a1e1d4d 100644
--- a/openbsc/tests/ctrl_test_runner.py
+++ b/openbsc/tests/ctrl_test_runner.py
@@ -234,7 +234,7 @@
         # No RSL link so everything is 0
         r = self.do_get('bts.0.channel-load')
         self.assertEquals(r['mtype'], 'GET_REPLY')
-        self.assertEquals(r['value'], 'CCCH+SDCCH4,0,0 TCH/F,0,0 TCH/H,0,0 SDCCH8,0,0 TCH/F_PDCH,0,0')
+        self.assertEquals(r['value'], 'CCCH+SDCCH4,0,0 TCH/F,0,0 TCH/H,0,0 SDCCH8,0,0 TCH/F_PDCH,0,0 CCCH+SDCCH4+CBCH,0,0 SDCCH8+CBCH,0,0')
 
     def testBtsOmlConnectionState(self):
         """Check OML state. It will not be connected"""