Upgrade asm to version 7.2

Bug: 141587937
Change-Id: If42fa57bab5fab9708c9c87b7d6678a34b5326f4
diff --git a/build.gradle b/build.gradle
index fd47c97..77b5865 100644
--- a/build.gradle
+++ b/build.gradle
@@ -35,7 +35,7 @@
 
 ext {
     androidSupportVersion = '25.4.0'
-    asmVersion = '7.1'
+    asmVersion = '7.2'
     espressoVersion = '3.0.0'
     fastutilVersion = '7.2.0'
     guavaVersion = '23.0'