termios: take non-default conversion functions to asm/termios-internal.h

There are exactly two places where we include <asm/termios.h> -
include/uapi/linux/termios.h and include/linux/termios-internal.h.
The latter cares about the conversion functions; the former does
not.

So take them into asm/termios-internal.h and have linux/termios-internal.h
include that in addition to asm/termios.h (conditional upon the config
symbol selected by the both architectures where such non-default functions
exist - alpha and sparc, that is).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
6 files changed