[lowpan][openthread] Add Mac Filter flag

This is needed for the mac filter features to work.

Bug: 72649
Change-Id: I04002d85737de3aa7d37c09fe429b9268b70a543
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/openthread/+/506320
Reviewed-by: Robert Quattlebaum <rquattle@google.com>
diff --git a/include/openthread-config-android.h b/include/openthread-config-android.h
index 0783033..61a6e3f 100644
--- a/include/openthread-config-android.h
+++ b/include/openthread-config-android.h
@@ -75,5 +75,8 @@
 /* OpenThread diagnostic feature */
 #define OPENTHREAD_CONFIG_DIAG_ENABLE 1
 
+/* OpenThread mac filter settings */
+#define OPENTHREAD_CONFIG_MAC_FILTER_ENABLE 1
+
 /* The settings storage path on android. */
 #define OPENTHREAD_CONFIG_POSIX_SETTINGS_PATH "/data/thread"