Staging: pohmelfs: fix spaces and TAB coding style issue in netfs.h

This is a patch to the netfs.h file that fixed up a TAB and spaces
WARNING found by the checkpatch.pl tools, like
	WARNING: please, no space before tabs
Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>