Promote HWASan tests to presubmit.

These have been passing consistently and are not significantly slowed down.

Change-Id: I5ed0f97fd2ac37932c6d35be30d5f2ff977c2c1d
diff --git a/TEST_MAPPING b/TEST_MAPPING
index bb00729..31a17b1 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -36,7 +36,7 @@
       "name": "MicrodroidHostTestCases"
     }
   ],
-  "hwasan-postsubmit": [
+  "hwasan-presubmit": [
     {
       "name": "adbd_test"
     },