recovery: fix library dependency

After removing some deadcode from libext4_utils, libz is optimized
out by linker. However, it's still required by libvintf. Moving libz
down the list fixed the build.

Bug: 64395169
Change-Id: I23ecd70c83af83a219faced59d8227dc3c4e43d5
diff --git a/Android.mk b/Android.mk
index 7e34c10..985131b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -158,7 +158,6 @@
     libziparchive \
     libotautil \
     libmounts \
-    libz \
     libminadbd \
     libasyncio \
     libfusesideload \
@@ -173,7 +172,8 @@
     libcutils \
     libutils \
     liblog \
-    libselinux
+    libselinux \
+    libz
 
 LOCAL_HAL_STATIC_LIBRARIES := libhealthd