libqos: Use explicit QTestState for rtas operations

Drop one more client of global_qtest by teaching all rtas test
functionality to pass in an explicit QTestState, adjusting all
callers.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Use nicer indentation in rtas.h]
Signed-off-by: Thomas Huth <thuth@redhat.com>
4 files changed