This fixes a regression from 6e96ff3e00
where WORDS_BIGENDIAN somehow was confused with WORDS_NEED_ALIGNMENT,
so that setting WORDS_NEED_ALIGNMENT resulted in assuming a big endian
machine. This completely broke the RPi build, which is little endian.
Fixes: 6e96ff3e00 ("Fix ambiguous use of INTEL_SHORT/INTEL_INT")
[Kp: added Fixes tag.]