This patch (3rd time's a charm) adds support for the SMSC LPC47B397-NC
sensor chip.  It was sponsored by In-Store Broadcasting Network.

Signed-off-by: Craig Kelly (In-Store Broadcasting Network)
Signed-off-by: Glenn Ball (Utilitek Systems, Inc.)
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>