Increase timeout for the 570-checker-osr test from 20s to 60s.

We have added new tests to the 570-checker-osr test in
    https://android-review.googlesource.com/215877
without increasing the timeout and we're seeing a timeout
on the build bot but not locally.

Bug: 28210356
Change-Id: I52160e617772857c62c7cbb7de6cbb5c23c02a66
diff --git a/test/570-checker-osr/src/Main.java b/test/570-checker-osr/src/Main.java
index f22a0c1..ba839bf 100644
--- a/test/570-checker-osr/src/Main.java
+++ b/test/570-checker-osr/src/Main.java
@@ -24,7 +24,7 @@
     };
     testThread.start();
     try {
-      testThread.join(20 * 1000);  // 20s timeout.
+      testThread.join(60 * 1000);  // 60s timeout.
     } catch (InterruptedException ie) {
       System.out.println("Interrupted.");
       System.exit(1);