Add ZSTD as dependency of update_engine

In preparation for adding ZSTD support to Virtual AB COW

Bug: 274129758

Change-Id: I4e0b838a1a78117890173423833499d02681f9c0
diff --git a/Android.bp b/Android.bp
index 1991c49..833d766 100644
--- a/Android.bp
+++ b/Android.bp
@@ -207,6 +207,7 @@
         "libcow_operation_convert",
         "lz4diff-protos",
         "liblz4patch",
+        "libzstd",
     ],
     shared_libs: [
         "libbase",
@@ -699,6 +700,7 @@
         "libselinux",
         "lz4diff-protos",
         "liblz4diff",
+        "libzstd",
     ],
     shared_libs: [
         "libbase",
@@ -1068,6 +1070,7 @@
         "libdm",
         "libgmock",
         "libz",
+        "libzstd",
     ],
     shared_libs: [
         "libssl",