This patch adds support for Telit FN980 0x1050 composition

0x1050: tty, adb, rmnet, tty, tty, tty, tty
Signed-off-by: NDaniele Palmas <dnlplm@gmail.com>
Acked-by: NBjørn Mork <bjorn@mork.no>
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>