Add src_util/check_all.py into check_build_sanity.py

Change-Id: I8b5f0241cc387d94fc01753254511875de87b197
diff --git a/scripts/check_build_sanity.py b/scripts/check_build_sanity.py
index f161b2e..9b2ca46 100644
--- a/scripts/check_build_sanity.py
+++ b/scripts/check_build_sanity.py
@@ -159,6 +159,7 @@
 	RunScript(os.path.join("external", "vulkancts", "build_mustpass.py")),
 	RunScript(os.path.join("scripts", "gen_egl.py")),
 	RunScript(os.path.join("scripts", "opengl", "gen_all.py")),
+	RunScript(os.path.join("scripts", "src_util", "check_all.py")),
 	CheckSrcChanges(),
 ]