update manpages for huawei 3G/4G LTE modem

[fbsd_paepcke.de]

Summary

• update cdce.4 and UPDATING to reflect change set around 1997d3a4a9f2

• fix bug reported by: David BOYER, missing entry for E3372h Model already in NCM mode in u3g.c

[fbsd_paepcke.de]

typo

[imp]

looks sane... but why the extra device?

[fbsd_paepcke.de]

In D38404#874948, @imp wrote:

looks sane... but why the extra device?

Its a bugfix.

There was a bug report here from David Boyer:
https://github.com/freebsd/freebsd-src/pull/633

He reported the bug (incl. fix proposal!) to the closed PR, because we have no issue tracker in github.

He worked around the problem (that this patchset fixed) by flashing a special firmware and ended in an unsupported situation. Adding this Device (that normally should not appear in the wild) we can cover all edge cases, including people with custom firmware or wild modeswitch solutions (eg. pfsense done as workaround ), so it should be safe to MFC this patchset now.

[fbsd_paepcke.de]

... should I split it into two? (If not, who can push?)