Add missing header dependencies

Test: m checkbuild
Change-Id: I1436cf0a9d719949ac8d880bc10ce81bdcfa33a5
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index cb53cda..f6aa867 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -161,6 +161,9 @@
     vendor_available: true,
     double_loadable: true,
     min_sdk_version: "29",
+    header_libs: [
+        "libaudio_system_headers",
+    ],
     shared_libs: [
         "audioclient-types-aidl-unstable-cpp",
         "libbase",