Emit Dlsa/Lsa only on revision 6 or when MSA is supported. Since we
support MSA only on r6, it is the only thing that is checked.
Added check if shift of Dlsa/Lsa is in range 0<shift<=31

Change-Id: Ic3902fcccc1a2e3ecc5f550ea3b7980bd2bb4c27
Reviewed-on: https://chromium-review.googlesource.com/c/1337581Reviewed-by: Ivica Bogosavljevic <ibogosavljevic@wavecomp.com>
Commit-Queue: Ivica Bogosavljevic <ibogosavljevic@wavecomp.com>
Cr-Commit-Position: refs/heads/master@{#57549}