TGT_LE and TGT_BE are not size dependent and do not need to be
redefined.  The others are no longer used at all.
Reviewed-by: NEmilio G. Cota <cota@braap.org>
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>