Fix misleading indentation warning:

sys/dev/urtwn/if_urtwn.c:4183:4: error: misleading indentation; statement is not part of the previous 'for' [-Werror,-Wmisleading-indentation]
if (error != USB_ERR_NORMAL_COMPLETION)
^
sys/dev/urtwn/if_urtwn.c:4180:3: note: previous statement is here
for (i = 0; i < nitems(rtl8192cu_mac); i++)
^

Direct commit to stable/11, since urtwn(4) has been merged into rtwn(4)
in FreeBSD 12 and later (and this code is not in rtwn).

MFC r344990:
Fix ieee80211_radiotap(9) usage in wireless drivers:

- Alignment issues:
* Add missing __packed attributes + padding across all drivers; in
most places there was an assumption that padding will be always
minimally suitable; in few places - e.g., in urtw(4) / rtwn(4) -
padding was just missing.
* Add __aligned(8) attribute for all Rx radiotap headers since they can
contain 64-bit TSF timestamp; it cannot appear in Tx radiotap headers, so
just drop the attribute here. Refresh ieee80211_radiotap(9) man page
accordingly.

- Since net80211 automatically updates channel frequency / flags in
ieee80211_radiotap_chan_change() drop duplicate setup for these fields
in drivers.

MFC r344745:
urtwn(4): fix Tx instability with RTL8192CU chipsets

PR: 233949

MFC r343474:
Remove 2GHz channel list copies from wireless drivers.

Wrap ieee80211_add_channel_list_2ghz into another function
which supplies default (1-14) channel list to it and drop
its copies from drivers.

MFC r306173:
Add TP-Link Archer T4U (and TPLINK vendor record in usbdevs).

MFC r341786,r342156
urtwn, rsu: add more USB ids (rtwn -> urtwn merge was done manually).

PR: 233638
Submitted by: cezary.sliwa@gmail.com

MFC r303115:

urtwn: fix A-MSDU tx aggregation when encryption is used.

Clear unused (undocumented) CAM bytes while setting a key;
without that, hardware does weird things when A-MSDU bit in QoS header
is set.

Tested with RTL8188CUS (AP) -> RTL8188EU (STA) (A-MSDU transmit).

Reported by: many
Approved by: re (gjb)
Obtained from: https://github.com/s3erios/urtwm