physmap.c: Minor cleanups

The following patches are all quite minor (pretty trivial, actually), but address different things physmap.c, so I've sent sent them as a patch set rather than as a single patch.

The diffstat:

 drivers/mtd/maps/physmap.c |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)

Thanks,
Zev Weiss