Enable use of libpffft in system-side unit tests am: a16a548b69 am: 516d50cef3

Original change: https://android-review.googlesource.com/c/platform/external/pffft/+/2281089

Change-Id: Ibe9e7cd85a8275ce42421b4ff7ce4a61f33b2d5f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/Android.bp b/Android.bp
index 3dc951a..d959825 100644
--- a/Android.bp
+++ b/Android.bp
@@ -35,7 +35,7 @@
 cc_library_static {
     name: "libpffft",
     // vendor needed for libpreprocessing effects.
-    vendor: true,
+    vendor_available: true,
     srcs: [
         "pffft.c",
         "pffft_common.c",
@@ -43,7 +43,8 @@
     local_include_dirs: ["."],
     export_include_dirs: ["."],
     host_supported: true,
-    visibility: ["//external/webrtc:__subpackages__"],
+    visibility: ["//external/webrtc:__subpackages__",
+        "//frameworks/av/media/libaudioclient/tests",],
     cflags: [
         "-Wno-#pragma-messages",
     ],