[jdk17] RFR: 8269840: Update Platform.isDefaultCDSArchiveSupported() to return true for Linux-aarch64

[Mikhailo Seledtsov]

On Thu, 8 Jul 2021 01:59:25 GMT, Mikhailo Seledtsov <mseledtsov at openjdk.org> wrote:

> Now that "JDK-8268212 Build linux-aarch64 natively" added support for default CDS archive, time to update test configuration for this platform. This is a very small one-line change.

Testing:
Grepped test sources for isDefaultCDSArchiveSupported. Found the following tests references:
test/hotspot/jtreg/runtime/cds/CheckDefaultArchiveFile.java,test/hotspot/jtreg/runtime/cds/CheckSharingWithDefaultArchive.java,test/lib-test/jdk/test/lib/TestMutuallyExclusivePlatformPredicates.java

Running these tests on Linux-aarch64.

@ioilam @calvinccheung @lmesnik Could you please review this one-liner when you have a chance?

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PR: https://git.openjdk.java.net/jdk17/pull/229