libs/bit.h: compat. change for embedded anonymous union
libs/bit.h: compat. change for embedded anonymous union

Signed-off-by: minux <b563c57947dc20eb81988e3e3c22786764c14ca8@gmail.com>

davexunit/fpgatools,DeanoC/fpgatools,Wolfgang-Spraul/fpgatools,DeanoC/fpgatools,davexunit/fpgatools,Wolfgang-Spraul/fpgatools,davexunit/fpgatools,Wolfgang-Spraul/fpgatools,DeanoC/fpgatools