Staging: wlags49_h2: fix TAB and space coding style issue dhf.c

This is a patch to the dhf.c file that fixed up a TAB and spaces Errors
found by the checkpatch.pl tools

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>