Staging: lustre: place open brace following struct on same line

This patch fixes checkpatch.pl warning:

WARNING: open brace following struct goes on the same line.

Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>