rtl8188eu: Fix smatch warning in core/rtw_xmit.c

Smatch shows the following:
  CHECK   /home/finger/rtl8188eu/core/rtw_xmit.c
/home/finger/rtl8188eu/core/rtw_xmit.c:1560 dequeue_one_xmitframe() info: ignoring unreachable code.

A while loop that has a break in the first pss is converted to to an if statement.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Merge branch 'next' of https://github.com/Noltari/rtl8188eu
rtl8188eu: Fix smatch errors due to MAX_PATH too small

Several of the struct definitions all for only 2 radio paths; however,
the code now has 3 such paths.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8188eu: Fix smatch errors in core/rtw_mlme_ext.c

Smatch shows the following:
  CHECK   /home/finger/rtl8188eu/core/rtw_mlme_ext.c
/home/finger/rtl8188eu/core/rtw_mlme_ext.c:8594 mlme_evt_hdl() error: buffer overflow 'wlanevents' 24 <= 24
/home/finger/rtl8188eu/core/rtw_mlme_ext.c:8595 mlme_evt_hdl() error: buffer overflow 'wlanevents' 24 <= 24
/home/finger/rtl8188eu/core/rtw_mlme_ext.c:8596 mlme_evt_hdl() error: buffer overflow 'wlanevents' 24 <= 24
/home/finger/rtl8188eu/core/rtw_mlme_ext.c:8607 mlme_evt_hdl() error: buffer overflow 'wlanevents' 24 <= 24

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8188eu: Fix smatch warnings in core/rtw_security.c

Smatch shows the following:
  CHECK   /home/finger/rtl8188eu/core/rtw_security.c
/home/finger/rtl8188eu/core/rtw_security.c:2077 rijndaelKeySetupEnc() warn: '4' 4 can't fit into 4611686018427387903 'rk'
/home/finger/rtl8188eu/core/rtw_security.c:2108 rijndaelEncrypt() warn: '8' 8 can't fit into 4611686018427387903 'rk'

These warnings were fixed by removing a number of unused routines.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8188eu: Add support for DLINK DWA-125 REV D1

User sergforce reported this on the GitHub issues list.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8188eu: Fix AP problem introduced in commit 954eab3

Two code lines were accidentally deleted in the commit noted in subject.
Restore them.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Remove unused variables from hal files.