sf_foundation: include media_plugin_headers

Bug: 77328578
Test: builds
Change-Id: I3376a32f09761e600d21cec276129a06f8dfc82a
diff --git a/media/libstagefright/foundation/Android.bp b/media/libstagefright/foundation/Android.bp
index b343c16..f663542 100644
--- a/media/libstagefright/foundation/Android.bp
+++ b/media/libstagefright/foundation/Android.bp
@@ -24,10 +24,12 @@
     header_libs: [
         "libhardware_headers",
         "libstagefright_foundation_headers",
+        "media_plugin_headers",
     ],
 
     export_header_lib_headers: [
         "libstagefright_foundation_headers",
+        "media_plugin_headers",
     ],
 
     export_shared_lib_headers: [