staging: rtl8192e: Fix smatch info output for r8192E_dev.c

Smatch reports the following informational output:

  CHECK   drivers/staging/rtl8192e/r8192E_dev.c
drivers/staging/rtl8192e/r8192E_dev.c +2404 ActUpdateChannelAccessSetting(13) info: ignoring unreachable code.
drivers/staging/rtl8192e/r8192E_dev.c +2404 ActUpdateChannelAccessSetting(13) info: ignoring unreachable code.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>