Make tests run for presubmit builds

Bug: 181615964
Test: watch TH
Change-Id: Idc1de5259ba270e6c025e9e30ef1dc6cdafcd6d9
diff --git a/apkdmverity/TEST_MAPPING b/apkdmverity/TEST_MAPPING
index 997b3f9..1bbec76 100644
--- a/apkdmverity/TEST_MAPPING
+++ b/apkdmverity/TEST_MAPPING
@@ -1,5 +1,5 @@
 {
-  "postsubmit" : [
+  "presubmit" : [
     {
       "name" : "apkdmverity.test"
     }