From: Paul Mundt <lethal@Linux-SH.ORG>

This adds support for the SM501/VoyagerGX companion chip, used by the
RTS7751R2D.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>