fixed a typo

groundStation/src/frontend/frontend_common.h

@@ -12,6 +12,6 @@ void ucart_backendDisconnect(struct backend_conn * conn);
 /* Get a string from the backend. NOTE: free() the string when
  * you are done with it.
  */
-char * backendGetline(struct backend_conn * conn);
+char * ucart_backendGetline(struct backend_conn * conn);
 
 #endif