Fix libmedia_helper dependencies.

Test: mma -j BOARD_VNDK_VERSION=current
Test: m -j BOARD_VNDK_VERSION=current
Test: m -j

Bug: 37342627
Change-Id: Ic1f05716df3802f7ef93c1e452565b901d0d1df9
diff --git a/media/libmedia/Android.bp b/media/libmedia/Android.bp
index 4c292ed..8cf8005 100644
--- a/media/libmedia/Android.bp
+++ b/media/libmedia/Android.bp
@@ -13,9 +13,12 @@
         "-Wno-error=deprecated-declarations",
         "-Wall",
     ],
-    shared: {
-      shared_libs: ["libutils", "liblog", "libgui"],
-    },
+    shared_libs: ["libutils", "liblog", "libgui"],
+    header_libs: [
+        "libmedia_headers",
+        "libaudioclient_headers",
+        "libaudio_system_headers",
+    ],
     clang: true,
 }