Port f0f22341

Original Commit Message:

    Add Rcpps and Rsqrtps macros.
    Rename SIMD_UNOP macros.

R=jing.bao@intel.com, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I269f553353827a2f36271cdc27c336438cb6488b
Reviewed-on: https://chromium-review.googlesource.com/986279Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#52304}