[11u] RFR 8233948: AArch64: Incorrect mapping between OptoReg and VMReg for high 64 bits of Vector Register

[Dmitry Chuyko]

Hello,

Original bug: https://bugs.openjdk.java.net/browse/JDK-8233948

Original patch applies unmodified but with fuzz 1 (offset 0 lines) in 
vmreg_aarch64.inline.hpp (JDK-8216167 wasn't ported).

11u webrev without fuzz: 
http://cr.openjdk.java.net/~dchuyko/8233948/webrev.11u.00/

Testing: aarch64 build, tier1, tier2.

--
Thanks,
-Dmitry