Improve resource requirements in suite.conf

Change-Id: I10fd47f53509f04abe1e2a39036e5d97c781ddab
diff --git a/suites/aoip_smpp/suite.conf b/suites/aoip_smpp/suite.conf
index 46f8d09..688fe0a 100644
--- a/suites/aoip_smpp/suite.conf
+++ b/suites/aoip_smpp/suite.conf
@@ -5,6 +5,8 @@
   - times: 1
   modem:
   - times: 1
+    features:
+    - sms
 
 defaults:
   timeout: 60s