Staging: otus: dont mix declarations and code

$ gcc (Debian 4.4.2-8) 4.4.2
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ make
...
drivers/staging/otus/ioctl.c: In function 'usbdrv_wpa_ioctl':
drivers/staging/otus/ioctl.c:2253: warning: ISO C90 forbids mixed declarations and code
...

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>