Remove private headers from libcutils.vendor

Bug: 63135587
Test: m -j
Test: BOARD_VNDK_VERSION=current m -j
Test: mma -j
Test: BOARD_VNDK_VERSION=current mma -j

Change-Id: I9eecf23c4c311bd8336a5bfaaeb2afb3b51c6513
Merged-In: I9eecf23c4c311bd8336a5bfaaeb2afb3b51c6513
diff --git a/libcutils/Android.bp b/libcutils/Android.bp
index 85258cd..8528a4b 100644
--- a/libcutils/Android.bp
+++ b/libcutils/Android.bp
@@ -150,6 +150,7 @@
         "libutils_headers",
     ],
     export_header_lib_headers: ["libcutils_headers"],
+    local_include_dirs: ["include"],
 
     cflags: [
         "-Werror",