codec2: fix build

Test: make -j checkbuild
Change-Id: I4e6ecd5e2262c2a2b801e889f1abe227ec4342b2
diff --git a/media/libstagefright/codec2/Android.bp b/media/libstagefright/codec2/Android.bp
index 1182cd8..e1ac44e 100644
--- a/media/libstagefright/codec2/Android.bp
+++ b/media/libstagefright/codec2/Android.bp
@@ -22,6 +22,16 @@
         "include",
     ],
 
+    header_libs: [
+        "libhardware_headers",
+        "libutils_headers",
+    ],
+
+    export_header_lib_headers: [
+        "libhardware_headers",
+        "libutils_headers",
+    ],
+
     sanitize: {
         misc_undefined: [
             "unsigned-integer-overflow",