RFR: 1469: Skara does not build on macOS arm64 [v2]

[Erik Helin]

> Hi all,
> 
> please review this patch that adds support for both Linux and macOS AArch64 to `gradlew`. I tested this for macOS/AArch64 but did not have a Linux/AArch64 system available (but it really should work unless I made a typo ��).
> 
> Testing:
> - [x] Tested locally on macOS/AArch64 using `sh gradlew`
> - [x] `sh gradlew test` passes
> 
> Thanks,
> Erik

Erik Helin has updated the pull request incrementally with one additional commit since the last revision:

  Linux uses aarch64

-------------

Changes:
  - all: https://git.openjdk.org/skara/pull/1333/files
  - new: https://git.openjdk.org/skara/pull/1333/files/7d2da9ef..7ea1c8b0

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=1333&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=1333&range=00-01

  Stats: 9 lines in 1 file changed: 4 ins; 4 del; 1 mod
  Patch: https://git.openjdk.org/skara/pull/1333.diff
  Fetch: git fetch https://git.openjdk.org/skara pull/1333/head:pull/1333

PR: https://git.openjdk.org/skara/pull/1333