Copter: allow OSD for TX-only screens

ArduCopter/Copter.h

@@ -141,7 +141,7 @@
  # include <AP_Button/AP_Button.h>
 #endif
 
-#if OSD_ENABLED == ENABLED
+#if OSD_ENABLED || OSD_PARAM_ENABLED
  #include <AP_OSD/AP_OSD.h>
 #endif
 
@@ -442,7 +442,7 @@ private:
                            FUNCTOR_BIND_MEMBER(&Copter::handle_battery_failsafe, void, const char*, const int8_t),
                            _failsafe_priorities};
 
-#if OSD_ENABLED == ENABLED
+#if OSD_ENABLED || OSD_PARAM_ENABLED
     AP_OSD osd;
 #endif
 

ArduCopter/Parameters.cpp

@@ -709,7 +709,7 @@ const AP_Param::Info Copter::var_info[] = {
     // @User: Standard
     GSCALAR(rtl_alt_type, "RTL_ALT_TYPE", 0),
 
-#if OSD_ENABLED == ENABLED
+#if OSD_ENABLED || OSD_PARAM_ENABLED
     // @Group: OSD
     // @Path: ../libraries/AP_OSD/AP_OSD.cpp
     GOBJECT(osd, "OSD", AP_OSD),