Add prebuilt jar for pre-N JDWP tests to third_party

The script in jdwp-tests/build-preN.sh contains the commands
to rebuild the preN jar for future reference.

Change-Id: I2d0ffde532402c3b8eaae60bddb327cf2e5e6703
diff --git a/third_party/jdwp-tests.tar.gz.sha1 b/third_party/jdwp-tests.tar.gz.sha1
index 0da9451..2336888 100644
--- a/third_party/jdwp-tests.tar.gz.sha1
+++ b/third_party/jdwp-tests.tar.gz.sha1
@@ -1 +1 @@
-86eeaa4cfe57d20b03af02310acac89892db3bd3
\ No newline at end of file
+63441e6be020e613cf7cf2002c15c01c8cbf2577
\ No newline at end of file