osmo-hlr.cfg.tmpl: Add ussd routing prefix for *#100# and fix expected answer format

Since osmo-hlr.git I1d09fab810a6bb9ab02904de72dbc9e8a414f9f9, USSD
processing has been moved to osmo-hlr and prefix routing needs to be
configured, otherwise USSD requested are answered back to the MS with an
error "ss-NotAvailable (18)".

mesage received for extension resolution (*#100#) had its format change,
so update to new format (carriage return at the end was dropped).

Change-Id: I5f75eff0df2d20d7f9b39e69184cffb0e635713d
diff --git a/suites/aoip_ussd/assert_extension.py b/suites/aoip_ussd/assert_extension.py
index 56d853b..475de09 100755
--- a/suites/aoip_ussd/assert_extension.py
+++ b/suites/aoip_ussd/assert_extension.py
@@ -46,4 +46,5 @@
 
 print('Sending ussd code %s' % USSD_COMMAND_GET_EXTENSION)
 response = ms.ussd_send(USSD_COMMAND_GET_EXTENSION)
-assert ' ' + ms.msisdn + '\r' in response
+log('got ussd response: %r' % repr(response))
+assert response.endswith(' ' + ms.msisdn)