hg: panama/dev: update ChaChaBench and Poly1305Bench

[vivek.r.deshpande at intel.com]

Changeset: 3c4be54d58ec
Author:    vdeshpande
Date:      2019-07-01 14:15 -0700
URL:       http://hg.openjdk.java.net/panama/dev/rev/3c4be54d58ec

update ChaChaBench and Poly1305Bench

! src/jdk.incubator.vector/share/classes/jdk/incubator/vector/VectorOperators.java
! test/jdk/jdk/incubator/vector/benchmark/src/main/java/benchmark/crypto/ChaChaBench.java
! test/jdk/jdk/incubator/vector/benchmark/src/main/java/benchmark/crypto/Poly1305Bench.java