Use VDUP for replicating a single element.
Use VZIP for interleaving vectors.
Use VMOV Dd, Dm for rearranging quadword vectors.

Bug b/67106219

Change-Id: I0de1457454c1db6d467bf870288b7af7cb59ac09
Reviewed-on: https://chromium-review.googlesource.com/695004Reviewed-by: Jim Stichnoth <stichnot@chromium.org>
Reviewed-on: https://swiftshader-review.googlesource.com/12968Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>