staging: wimax: fix block comment style check in op-rfkill.c

This commit fixes the following checkpatch.pl warning:

WARNING: Block comments use a trailing */ on a separate line
+		 * considering the radios are all off. */

Signed-off-by: Gabriele Modena <gabriele.modena@gmail.com>
Link: https://lore.kernel.org/r/752f22ec19c8e5bc249589ca4c5edef770396aff.1615652628.git.gabriele.modena@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>