RFR: 8265343: Update Debian-based cross-compilation recipes

Fri Apr 16 13:51:35 UTC 2021

On Fri, 16 Apr 2021 11:57:32 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> After [JDK-8257913](https://bugs.openjdk.java.net/browse/JDK-8257913), we do not need to set a whole lot of options for cross-compiled builds. Docs should be updated to reflect that fact. Also put in more configurations that are buildable with Debian ports: these build routinely at [builds.shipilev.net](https://builds.shipilev.net/openjdk-jdk/).
> 
> Maybe @glaubitz wants to chime in here too :)

Marked as reviewed by erikj (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/3545