Enable the CONFIG_NAN_USD flag in the Vendor
Supplicant AIDL layer.

Flag is currently only enabled for the core
supplicant.

Bug: 382756996
Test: Manual test
Change-Id: I5f52da2a0ec73a79f58cdfb1627729681b77544c
diff --git a/wpa_supplicant/Android.bp b/wpa_supplicant/Android.bp
index fb74517..08d2832 100644
--- a/wpa_supplicant/Android.bp
+++ b/wpa_supplicant/Android.bp
@@ -1465,6 +1465,7 @@
     name: "libwpa_aidl",
     vendor: true,
     cppflags: [
+        "-DCONFIG_NAN_USD",
         "-Wall",
         "-Werror",
         "-Wno-unused-parameter",