This adds support for an SH-4 optimized memcpy().
Written by Stuart Menefy <stuart.menefy@st.com>.
Signed-off-by: Paul Mundt <paul.mundt@nokia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>