_graphical_wait_login: inherit 'installedtest' not 'basetest'

Summary:
We'll often be able to reach a root console and upload logs if
this test fails, and we want to do that so we can figure out
what's going on.

Test Plan:
Have the test fail and check that it manages to upload
logs.

Reviewers: jskladan, garretraziel

Reviewed By: garretraziel

Subscribers: tflink

Differential Revision: https://phab.qadevel.cloud.fedoraproject.org/D856

tests/_graphical_wait_login.pm

@@ -1,4 +1,4 @@
-use base "basetest";
+use base "installedtest";
 use strict;
 use testapi;