staging: rtl8192u: Move open brace on the previous line

Move open brace on the previous line and fix coding style in
these lines when It is necessary in ieee80211/dot11d.c

Fix checkpatch.pl errors:
ERROR: that open brace { should be on the previous line

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>