[master] RFR: Fix 32-bit Zero builds

[Aleksey Shipilev]

These two methods are already defined in `compressedKlass.cpp` when `!LP64`. So the build fails with duplicate definitions on 32-bit platforms. The patch does the same thing x86_32 does.

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

Commit messages:
 - Fix

Changes: https://git.openjdk.java.net/lilliput/pull/33/files
 Webrev: https://webrevs.openjdk.java.net/?repo=lilliput&pr=33&range=00
  Stats: 6 lines in 1 file changed: 4 ins; 2 del; 0 mod
  Patch: https://git.openjdk.java.net/lilliput/pull/33.diff
  Fetch: git fetch https://git.openjdk.java.net/lilliput pull/33/head:pull/33

PR: https://git.openjdk.java.net/lilliput/pull/33