Promote HWASan tests to presubmit.

These have been passing and not slowed down much.

Change-Id: I839ca4181ad4a2a71ac788945a1a2198bf41e285
diff --git a/TEST_MAPPING b/TEST_MAPPING
index f70a3b3..d721d3c 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -6,7 +6,7 @@
         { "name": "resolv_integration_test" },
         { "name": "resolv_unit_test" }
     ],
-    "hwasan-postsubmit": [
+    "hwasan-presubmit": [
         { "name": "netd_integration_test" },
         { "name": "netd_unit_test" },
         { "name": "netdutils_test" },