fate/hevc: add flags unaligned

cherry picked from commit 3b69a2dc469160ee87367191e630e8398e832227

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
fate/hevc: adding CONFWIN_A conformance test

cherry picked from commit 3b69a2dc469160ee87367191e630e8398e832227

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>