x86-64 memcpy_toio(), memcpy_fromio(), memset_io() and read{b,w,l,q}(),
switched to standard prototypes. 
Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>