hg: jdk/jdk: 8243155: AArch64: Add support for SqrtVF

[nick.gasson at arm.com]

Changeset: b7859479635a
Author:    yzhang
Date:      2020-04-29 09:58 +0800
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/b7859479635a

8243155: AArch64: Add support for SqrtVF
Reviewed-by: aph

! src/hotspot/cpu/aarch64/aarch64.ad
! test/hotspot/jtreg/compiler/c2/cr6340864/TestDoubleVect.java
! test/hotspot/jtreg/compiler/c2/cr6340864/TestFloatVect.java