tests: Replace is_connected() with is_registered()
API was renamed and old name deprecated, let's use it everywhere.
Change-Id: Ic91dddcfd1a5a17c35d15a8a14628b3923229523
diff --git a/sysmocom/suites/gprs/lib/testlib.py b/sysmocom/suites/gprs/lib/testlib.py
index 1421229..510dc72 100644
--- a/sysmocom/suites/gprs/lib/testlib.py
+++ b/sysmocom/suites/gprs/lib/testlib.py
@@ -85,7 +85,7 @@
print('waiting for modems to attach...')
for ms in ms_li:
- wait(ms.is_connected, msc.mcc_mnc())
+ wait(ms.is_registered, msc.mcc_mnc())
wait(msc.subscriber_attached, *ms_li)
print('waiting for modems to attach to data services...')