UPSTREAM: net: qmi_wwan: shorten driver description

UPSTREAM: net: qmi_wwan: shorten driver description

The description is used in ethtool fixed length fields.  Make
it shorter to avoid truncation.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit a40345b5b4a09ff8539aaafeb2c612db6d0b4d1b)

Change-Id: Ic53b2a602dfa8b066de4f9219dbf5436b8ed9f63
Signed-off-by: Ben Chan <benchan@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/35013
Reviewed-by: Olof Johansson <olofj@chromium.org>