Staging: wl_cs.c: converted space to tabs in wl_cs.c

This is a patch to the wl_cs.c file that converts spaces to
tabs style issues found by the checkpatch.pl tool.

Signed-off-by: Prashant P. Shah <pshah.mumbai@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>