Add -DHAS_HAYSTACK flag to Android L3 build

Using Haystack L3 for now.

Test: build widevine apex
Bug: 324147162
Change-Id: I6421b2cd6f48efc32b7067c7dfd31203181c1e84

libwvdrmengine/level3/Android.bp

@@ -30,6 +30,7 @@ cc_library_static {
     name: "libwvlevel3",
     cflags: [
         "-DDYNAMIC_ADAPTER",
+        "-DHAS_HAYSTACK",
         "-Wno-unused",
         "-Wno-unused-parameter",
     ],