Refactor to call the GetSubTree method

Uniformly use the getSubTree method of utils.hpp to obtain objectTree

Signed-off-by: George Liu <liuxiwei@ieisystem.com>
Change-Id: I20204745a01c50f053db74a5749a070bc8193d39
diff --git a/dbus-sdr/sdrutils.cpp b/dbus-sdr/sdrutils.cpp
index e7ed347..fa96c6b 100644
--- a/dbus-sdr/sdrutils.cpp
+++ b/dbus-sdr/sdrutils.cpp
@@ -16,6 +16,7 @@
 
 #include "dbus-sdr/sdrutils.hpp"
 
+#include <ipmid/utils.hpp>
 #include <nlohmann/json.hpp>
 
 #include <fstream>