CI: deviceinfo: add manufacturer exception for Jolla

Some phones sold under the Jolla brand are manufactured by a partner,
e.g. the Jolla C2 is manufactured by Reeder. Although these phones
usually have another name given to them by the manufacturer, the name
used by Jolla is more recognizable. Allow specifying a name that
starts with "Jolla" instead of the manufacturer name.

Part-of: https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/6426

.ci/testcases/test_deviceinfo.py

@@ -74,7 +74,8 @@ def test_deviceinfo():
             name = info.name
             manufacturer = info.manufacturer
             if not name.startswith(manufacturer) and \
-                    not name.startswith("Google"):
+                    not name.startswith("Google") and \
+                    not name.startswith("Jolla"):
                 raise RuntimeError("Please add the manufacturer in front of"
                                    " the deviceinfo_name, e.g.: '" +
                                    manufacturer + " " + name + "'")