read_xed_db: add support for avx_vsib, avx512_vsib.
read_xed_db: add support for avx_vsib, avx512_vsib.

Change-Id: Ic117a65a958fd54ed8f982690126e0016912dc6d
(cherry picked from commit 7adab16319bc2ca123ea6782541dccf41e86ab3d)

intelxed/xed,intelxed/xed,intelxed/xed,intelxed/xed