Add zlib to buildtools

Bug: 130543265
Change-Id: If7d51597d47edacb0fc94b864a994718758e38fb
diff --git a/Android.bp b/Android.bp
index 1c150ae..3941dca 100644
--- a/Android.bp
+++ b/Android.bp
@@ -480,6 +480,7 @@
     "libprotobuf-cpp-lite",
     "libservices",
     "libutils",
+    "libz",
   ],
   static_libs: [
     "libgtest_prod",
@@ -3132,6 +3133,7 @@
     "libservices",
     "libunwindstack",
     "libutils",
+    "libz",
   ],
   static_libs: [
     "libgmock",
@@ -3483,6 +3485,7 @@
   shared_libs: [
     "liblog",
     "libprotobuf-cpp-lite",
+    "libz",
   ],
   static_libs: [
     "libgtest_prod",