net: usb: qmi_wwan: fix Telit Cinterion FN990A name

[ Upstream commit ad1664fb ]

The correct name for FN990 is FN990A so use it in order to avoid
confusion with FN990B.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Link: https://patch.msgid.link/20250205171649.618162-5-fabio.porcedda@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 61aaca8b ("net: usb: qmi_wwan: add Telit Cinterion FN990A w/audio composition")
Signed-off-by: Sasha Levin <sashal@kernel.org>