The port routines were logically inverted, and the MRSHPC range had
no upper bound, causing 8 and 16-bit port I/O to get mangled.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This adds support for the Solution Engine 7206 and 7619.
Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>