Add FinalizerTimeoutMs argument, and respect it

Add -XX:FinalizerTimeoutMs commandline argument, and make it
available for libcore.

Add 1336-short-finalizer-timeout to test it. Blacklist it for
the cases in which 030-bad-finalizers was known not to work,
since it's largely a clone. Disable it for gcstress, since timeout
margins are tight.

Increase timeout in 030-bad-finalizers due to gcstress issues.

Use the result in 004-NativeAllocations and 030-bad-finalizers
to avoid timeouts. Make 004-NativeAllocations more proactive in
avoiding timeout.

This is intended as a replacement for aosp/836642 .

Bug: 129350738
Bug: 68792448
Test: Boot AOSP, TreeHugger
Change-Id: I9aef9c9bacb7e8d851bd2c879ed9fb5b596abc60