Add Rcpps and Rsqrtps macros.
Rename SIMD_UNOP macros.

Change-Id: I7e9418a835f085cc0fdd31fc3815c17c8f413b67
Reviewed-on: https://chromium-review.googlesource.com/982575Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Jing Bao <jing.bao@intel.com>
Cr-Commit-Position: refs/heads/master@{#52291}