init: require e2fsdroid and mke2fs when building init

init calls fs_mgr to format ext4 partitions. This requires
e2fsdroid and mke2fs in /system/bin/

Bug: 35219933
Change-Id: Ia32fe438cd9b9332f8e18e0cbe7f61bd050adcb1
(cherry picked from commit 041f849548397803e2f458fd08d5e7b98909c8e4)
diff --git a/init/Android.mk b/init/Android.mk
index 325614e..670edc0 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -89,6 +89,10 @@
     libavb \
     libkeyutils \
 
+LOCAL_REQUIRED_MODULES := \
+    e2fsdroid \
+    mke2fs \
+
 # Create symlinks.
 LOCAL_POST_INSTALL_CMD := $(hide) mkdir -p $(TARGET_ROOT_OUT)/sbin; \
     ln -sf ../init $(TARGET_ROOT_OUT)/sbin/ueventd; \