compositorcontroller: fix for rdkshell crash

fix for rdkcentral#54

return statement of CompositorController::draw() is missed
as its return type is bool. Upon having a return type but
no return value, rdkshell encounters segmentation fault while
building it on higher version of gcc

Signed-off-by: Moorthy Baskar <[email protected]>

compositorcontroller.cpp

@@ -1140,6 +1140,7 @@ namespace RdkShell
                 gSplashImage->draw();
             }
         }
+	return true;
     }
 
     bool CompositorController::addAnimation(const std::string& client, double duration, std::map<std::string, RdkShellData> &animationProperties)