Increase JDWP test timeout.

Bug: 187141551
Change-Id: If617fab517b4017e749be64378b1c9aa2fee0a5b
diff --git a/tools/run-libjdwp-tests.sh b/tools/run-libjdwp-tests.sh
index 415a7de..ce70ea2 100755
--- a/tools/run-libjdwp-tests.sh
+++ b/tools/run-libjdwp-tests.sh
@@ -113,7 +113,7 @@
   if [[ "$has_verbose" = "yes" || "$has_gcstress" = "yes" ]]; then
     # Extra time if verbose or gcstress is set since those can be
     # quite heavy.
-    args+=(200000)
+    args+=(300000)
   else
     args+=(20000)
   fi