cmake: extensions: Move ifndef functions to correct location

This commit moves the '_ifndef' functions that are implemented in the
"3.1. *_ifdef" section to the "3.2. *_ifndef" section.

Signed-off-by: Stephanos Ioannidis <[email protected]>

Author: stephanosio

cmake/extensions.cmake

@@ -1393,24 +1393,12 @@ function(zephyr_library_sources_ifdef feature_toggle source)
   endif()
 endfunction()
 
-function(zephyr_library_sources_ifndef feature_toggle source)
-  if(NOT ${feature_toggle})
-    zephyr_library_sources(${source} ${ARGN})
-  endif()
-endfunction()
-
 function(zephyr_sources_ifdef feature_toggle)
   if(${${feature_toggle}})
     zephyr_sources(${ARGN})
   endif()
 endfunction()
 
-function(zephyr_sources_ifndef feature_toggle)
-   if(NOT ${feature_toggle})
-    zephyr_sources(${ARGN})
-  endif()
-endfunction()
-
 function(zephyr_cc_option_ifdef feature_toggle)
   if(${${feature_toggle}})
     zephyr_cc_option(${ARGN})
@@ -1503,6 +1491,18 @@ function(target_cc_option_ifndef feature_toggle target scope option)
   endif()
 endfunction()
 
+function(zephyr_library_sources_ifndef feature_toggle source)
+  if(NOT ${feature_toggle})
+    zephyr_library_sources(${source} ${ARGN})
+  endif()
+endfunction()
+
+function(zephyr_sources_ifndef feature_toggle)
+   if(NOT ${feature_toggle})
+    zephyr_sources(${ARGN})
+  endif()
+endfunction()
+
 function(zephyr_cc_option_ifndef feature_toggle)
   if(NOT ${feature_toggle})
     zephyr_cc_option(${ARGN})