Revert "Changed dpm shell commands to use 'cmd device_policy'"

This reverts commit e311f273d4593e135d83bd41f1d4d8b4fd9fc9ad.

Reason for revert: Suspected to break git_sc-dev: https://android-build.googleplex.com/builds/tests/view?invocationId=I95100008561539923&testResultId=TR98321419962361792

Bug: 186208038
Change-Id: I0dc3ee2d509f395677600590d0cbb42b4d9f1682
diff --git a/cmds/dpm/Android.bp b/cmds/dpm/Android.bp
index 6819d09..665abcd 100644
--- a/cmds/dpm/Android.bp
+++ b/cmds/dpm/Android.bp
@@ -18,7 +18,8 @@
     ],
 }
 
-sh_binary {
+java_binary {
     name: "dpm",
-    src: "dpm",
+    wrapper: "dpm",
+    srcs: ["**/*.java"],
 }