Add minimal USSD support to test extension number

Change-Id: Ib19331f9c6476ac01bf729790dfd63c56de86a89
diff --git a/suites/aoip_ussd/suite.conf b/suites/aoip_ussd/suite.conf
new file mode 100644
index 0000000..1da0cc5
--- /dev/null
+++ b/suites/aoip_ussd/suite.conf
@@ -0,0 +1,9 @@
+resources:
+  ip_address:
+  - times: 5 # msc, bsc, hlr, stp, mgw
+  bts:
+  - times: 1
+  modem:
+  - times: 1
+    features:
+    - ussd