git: openjdk/jdk11u-dev: 8199138: Add RISC-V support to Zero

[Aleksey Shipilev]

Changeset: 57aa3d83
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2021-10-07 06:50:15 +0000
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/57aa3d83759a1d92084df4298bd7144ad1c1e660

8199138: Add RISC-V support to Zero

Backport-of: edc4ffe54b8c1f042e98c0ddb9dce757d88b01f4

! make/autoconf/platform.m4
! src/hotspot/os/linux/os_linux.cpp