libsysutils: const correctness fixes + remove some debugging

Signed-off-by: San Mehat <san@google.com>
diff --git a/include/sysutils/FrameworkClient.h b/include/sysutils/FrameworkClient.h
index 1eb112a..0ef0753 100644
--- a/include/sysutils/FrameworkClient.h
+++ b/include/sysutils/FrameworkClient.h
@@ -13,8 +13,8 @@
     FrameworkClient(int sock);
     virtual ~FrameworkClient() {}
 
-    int sendMsg(char *msg);
-    int sendMsg(char *msg, char *data);
+    int sendMsg(const char *msg);
+    int sendMsg(const char *msg, const char *data);
 };
 
 typedef android::List<FrameworkClient *> FrameworkClientCollection;
diff --git a/include/sysutils/SocketClient.h b/include/sysutils/SocketClient.h
index cde64a5..469dd9d 100644
--- a/include/sysutils/SocketClient.h
+++ b/include/sysutils/SocketClient.h
@@ -15,8 +15,8 @@
 
     int getSocket() { return mSocket; }
 
-    int sendMsg(int code, char *msg, bool addErrno);
-    int sendMsg(char *msg);
+    int sendMsg(int code, const char *msg, bool addErrno);
+    int sendMsg(const char *msg);
 };
 
 typedef android::List<SocketClient *> SocketClientCollection;
diff --git a/include/sysutils/SocketListener.h b/include/sysutils/SocketListener.h
index 30d050d..68dcb8f 100644
--- a/include/sysutils/SocketListener.h
+++ b/include/sysutils/SocketListener.h
@@ -37,8 +37,8 @@
     int startListener();
     int stopListener();
 
-    void sendBroadcast(int code, char *msg, bool addErrno);
-    void sendBroadcast(char *msg);
+    void sendBroadcast(int code, const char *msg, bool addErrno);
+    void sendBroadcast(const char *msg);
 
 protected:
     virtual bool onDataAvailable(SocketClient *c) = 0;