[master] RFR: JDK-8328886: Lilliput: Build COH archives

[Thomas Stuefe]

This is a breakout from and a prerequisite for [JDK-8325104](https://bugs.openjdk.org/browse/JDK-8325104).

To run with +COH and CDS enabled, and to enable tests testing this combination, we need to build archives with +COH too.

This patch expands the number of archives built to four:

a) **classes.jsa** (+UseCompressedClassPointers, -UseCompactObjectHeaders)
b) **classes_nocoops.jsa** (-UseCompressedClassPointers, -UseCompactObjectHeaders)
c) **classes_coh.jsa** (+UseCompressedClassPointers, +UseCompactObjectHeaders)
d) **classes_nocoops_coh.jsa** (-UseCompressedClassPointers, +UseCompactObjectHeaders)

Naming could be more logical, but my aim was to keep compatibility with upstream archive names (no functional or name changes for *classes.jsa* and *classes_nocoops.jsa*). 

Another design goal was for the name-to-options mapping not to change *even if UseCOH were enabled by default*. So, _classes.jsa_ is not the "default jsa" but explicitly and always signifies the jsa with +coops -coh.

The new configure option `--(enable|disable)-cds-archive-coh` allows you to enable/disable the generation of COH archives. By default, it is enabled if the underlying platform supports COH (64-bit) and if standard CDS archive generation is enabled (e.g., not for cross-compilation).

Note that the upcoming JEP "CDS Archived Object Streaming" ([JDK-8326035](https://bugs.openjdk.org/browse/JDK-8326035)) will eliminate the +-Coops distinction, thus reducing the number of CDS archives. It may also eliminate the +-COH distinction at some point, though that is harder.

But that JEP has to be developed and shipped first. After that, it will run alongside the old implementation for a while, which we keep as a fallback. Only if it is the sole remaining way to load CDS archives can we cut down the number of jsa archives. Until then, I propose to keep +-COH archives in addition to +-Coops archives.

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Commit messages:
 - fix configure script
 - fix 32-bit tests
 - fix 32-bit
 - build COH archives

Changes: https://git.openjdk.org/lilliput/pull/145/files
  Webrev: https://webrevs.openjdk.org/?repo=lilliput&pr=145&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8328886
  Stats: 180 lines in 6 files changed: 170 ins; 0 del; 10 mod
  Patch: https://git.openjdk.org/lilliput/pull/145.diff
  Fetch: git fetch https://git.openjdk.org/lilliput.git pull/145/head:pull/145

PR: https://git.openjdk.org/lilliput/pull/145