Shl/ShrS/ShrU
Add/AddSaturateS/Sub/SubSaturateS

Bug: 
Change-Id: I9fbca45a22505ce1cea6b6ee2b57c07b71d31d50
Reviewed-on: https://chromium-review.googlesource.com/737513
Commit-Queue: Jing Bao <jing.bao@intel.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49247}