Add make_ext4fs to all builds

make_ext4fs is needed for all builds because ASEC containers use it now.
Any product not having this will not be able to create an ASEC
container.

(cherry-pick of 720479ea7e6307648c56f61d82ac12d65f218dda)

Bug: 6960586
Change-Id: I6864ce339a3593c5043e6a55b5af118b3169cc01
diff --git a/target/product/core.mk b/target/product/core.mk
index 688c806..b7934b3 100644
--- a/target/product/core.mk
+++ b/target/product/core.mk
@@ -114,6 +114,7 @@
     libwebrtc_audio_preprocessing \
     libwilhelm \
     libz \
+    make_ext4fs \
     mdnsd \
     requestsync \
     screencap \