Add support for signing a compressed apex

Test: atest releasetools_test
Bug: 172912232
Change-Id: I4630578694afbab675db770b46898cc32f1861f3
diff --git a/core/Makefile b/core/Makefile
index 79255ca..95bac40 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -4130,6 +4130,7 @@
 # Additional tools to unpack and repack the apex file.
 INTERNAL_OTATOOLS_MODULES += \
   apexer \
+  apex_compression_tool \
   deapexer \
   debugfs_static \
   merge_zips \