Fix mbed examples after minar upgrade
diff --git a/yotta/data/example-tls-client/main.cpp b/yotta/data/example-tls-client/main.cpp
index 684f1c1..907cfb6 100644
--- a/yotta/data/example-tls-client/main.cpp
+++ b/yotta/data/example-tls-client/main.cpp
@@ -513,7 +513,7 @@
 
     printf("Client IP Address is %s\r\n", eth.getIPAddress());
 
-    mbed::FunctionPointer1<void, const char*> fp(hello, &HelloHTTPS::startTest);
+    mbed::util::FunctionPointer1<void, const char*> fp(hello, &HelloHTTPS::startTest);
     minar::Scheduler::postCallback(fp.bind(HTTPS_PATH));
 }