Switch to tombstoned.microdroid

Bug: 239367015
Test: microdroid presubmits
Change-Id: I01b4cc90425d79c5b33b8e17bf9fe942c3d6233b
diff --git a/microdroid/system/private/file_contexts b/microdroid/system/private/file_contexts
index 8406e55..7968ff3 100644
--- a/microdroid/system/private/file_contexts
+++ b/microdroid/system/private/file_contexts
@@ -110,7 +110,7 @@
 /system/bin/logcat	--	u:object_r:logcat_exec:s0
 /system/bin/logd        u:object_r:logd_exec:s0
 /system/bin/sh		--	u:object_r:shell_exec:s0
-/system/bin/tombstoned u:object_r:tombstoned_exec:s0
+/system/bin/tombstoned.microdroid u:object_r:tombstoned_exec:s0
 /system/bin/toolbox	--	u:object_r:toolbox_exec:s0
 /system/bin/toybox	--	u:object_r:toolbox_exec:s0
 /system/bin/zipfuse              u:object_r:zipfuse_exec:s0