Fix 2.2.2RC1 no gvar compile (#5961)

* Make model_gars.cpp flag dependend

* Cosmetics

radio/src/targets/sky9x/CMakeLists.txt

@@ -70,7 +70,6 @@ set(GUI_SRC
   model_input_edit.cpp
   model_mix_edit.cpp
   model_display.cpp
-  model_gvars.cpp
   radio_diagkeys.cpp
   radio_diaganas.cpp
   radio_hardware.cpp
@@ -78,6 +77,13 @@ set(GUI_SRC
   view_about.cpp
   )
 
+if(GVARS)
+  set(GUI_SRC
+    ${GUI_SRC}
+    model_gvars.cpp
+    )
+endif()
+
 set(FIRMWARE_TARGET_SRC
   ${FIRMWARE_TARGET_SRC}
   ../common/arm/loadboot.cpp