Use override_export_include_dirs.

Bug: 62878521
Test: soong build system finds renamed attribute
Change-Id: I51e42f4378db366b8711cd373fb835fecda88416
diff --git a/libcutils/Android.bp b/libcutils/Android.bp
index 9cba109..6d00dc6 100644
--- a/libcutils/Android.bp
+++ b/libcutils/Android.bp
@@ -36,7 +36,7 @@
     export_include_dirs: ["include"],
     target: {
         vendor: {
-            export_include_dirs: ["include_vndk"],
+            override_export_include_dirs: ["include_vndk"],
         },
         linux_bionic: {
             enabled: true,