am da5b6f2d: Normalize dream service dump check with other services.

    @Override

    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {

        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DUMP, TAG);

        if (mContext.checkCallingOrSelfPermission("android.permission.DUMP")

                != PackageManager.PERMISSION_GRANTED) {

            pw.println("Permission Denial: can't dump DreamManager from pid="

                    + Binder.getCallingPid()

                    + ", uid=" + Binder.getCallingUid());

            return;

        }

        pw.println("DREAM MANAGER (dumpsys dreams)");

        pw.println();