[master] RFR: Disable biased locking altogether

[Roman Kennke]

In anticipation of eventual removal of biased locking (see JDK-8256425), I'd like to always disable BL in Lilliput. This makes room in the header to put the compressed Klass* in the upper 32 bit. With BL, it would clash with the Thread* there.

Testing:
 - [x] tier1
 - [ ] tier2

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Commit messages:
 - Disable biased locking altogether

Changes: https://git.openjdk.java.net/lilliput/pull/4/files
 Webrev: https://webrevs.openjdk.java.net/?repo=lilliput&pr=4&range=00
  Stats: 8 lines in 2 files changed: 7 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/lilliput/pull/4.diff
  Fetch: git fetch https://git.openjdk.java.net/lilliput pull/4/head:pull/4

PR: https://git.openjdk.java.net/lilliput/pull/4