fix TINY ANDROID yet again...

Change-Id: If52e1387c590be5ef467280ab2d1b56b8a823cd0
diff --git a/core/main.mk b/core/main.mk
index 81bebc8..3ec3189 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -446,6 +446,8 @@
 subdirs := \
 	bionic \
 	system/core \
+	system/extras/ext4_utils \
+	system/extras/su \
 	build/libs \
 	build/target \
 	build/tools/acp \