Add missing library in exported lflags.

manifest.xml

@@ -12,7 +12,7 @@
   <export>
     <cpp
        cflags="-I${prefix}/include"
-       lflags="-L${prefix}/lib -lros_bridge -Wl,-rpath,${prefix}/lib"
+       lflags="-L${prefix}/lib -lros_bridge -lros_interpreter -Wl,-rpath,${prefix}/lib"
        />
   </export>