Update dx to a version that support class file v52.

R=sgjesse@google.com

Change-Id: I81b81ad614905a7667769ef400b8b1cedc09606f
diff --git a/tools/linux/dx.tar.gz.sha1 b/tools/linux/dx.tar.gz.sha1
index f13e394..92e67ce 100644
--- a/tools/linux/dx.tar.gz.sha1
+++ b/tools/linux/dx.tar.gz.sha1
@@ -1 +1 @@
-6976e6a1768527b2388b1fdda5868dfa6b80d844
\ No newline at end of file
+da8789846188590e69dbac06f4d387762e71a616
\ No newline at end of file