[asan] add asan flag to sonic_version.yml

Signed-off-by: Yakiv Huryk <[email protected]>

Author: Yakiv-Huryk

files/build_templates/sonic_version.yml.j2

@@ -23,4 +23,6 @@ built_by: {{ built_by }}
 {{ name }}: {{ version }}
 {% endfor -%}
 {% endif -%}
-
+{% if ENABLE_ASAN == "y" -%}
+asan: 'yes'
+{% endif -%}