hg: panama/dev: Implement VectorAPI mulAll() and addAll() for AArch64 NEON

[vladimir.x.ivanov at oracle.com]

Changeset: 5c3934cc4f54
Author:    jzhu
Date:      2018-12-04 14:26 +0800
URL:       http://hg.openjdk.java.net/panama/dev/rev/5c3934cc4f54

Implement VectorAPI mulAll() and addAll() for AArch64 NEON
Summary: Add reduce_add8B/16B/4S/8S/2L, reduce_mul8B/16B/4S/8S/2L and mul8B/16B in AArch64 backend

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