Merge branch 'feat/size_unify_sections_v5.3' into 'release/v5.3'

feat(tools): unify sections in idf.py size reports for NG version (v5.3)

See merge request espressif/esp-idf!34856

Author: dobairoland

tools/cmake/run_size_tool.cmake

@@ -32,6 +32,10 @@ if(DEFINED IDF_SIZE_MODE)
     list(APPEND IDF_SIZE_CMD ${IDF_SIZE_MODE})
 endif()
 
+if(DEFINED ENV{ESP_IDF_SIZE_NG})
+    list(APPEND IDF_SIZE_CMD "--unify")
+endif()
+
 list(APPEND IDF_SIZE_CMD ${MAP_FILE})
 
 execute_process(COMMAND ${IDF_SIZE_CMD}