softap: Incapsulate command call

Change-Id: I9c123252b3b5fa8649876e7e9138927d25dd1812
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/SoftapController.h b/SoftapController.h
index 46779a4..04ecd2b 100644
--- a/SoftapController.h
+++ b/SoftapController.h
@@ -35,6 +35,7 @@
 
     int getPrivFuncNum(char *iface, const char *fname);
     int addParam(int pos, const char *cmd, const char *arg);
+    int setCommand(char *iface, const char *fname);
 public:
     SoftapController();
     virtual ~SoftapController();