openggsn: Add patch to reduce queue depth / memory usage
diff --git a/recipes-osmocom/openggsn/files/libgtp-queue_depth_32.patch b/recipes-osmocom/openggsn/files/libgtp-queue_depth_32.patch
new file mode 100644
index 0000000..52bc37b
--- /dev/null
+++ b/recipes-osmocom/openggsn/files/libgtp-queue_depth_32.patch
@@ -0,0 +1,13 @@
+diff --git a/gtp/queue.h b/gtp/queue.h
+index 556b6ef..d59a1a3 100644
+--- a/gtp/queue.h
++++ b/gtp/queue.h
+@@ -19,7 +19,7 @@
+
+ #define QUEUE_DEBUG 0 /* Print debug information */
+
+-#define QUEUE_SIZE 1024 /* Size of retransmission queue */
++#define QUEUE_SIZE 32 /* Size of retransmission queue */
+ #define QUEUE_HASH_SIZE 65536 /* Size of hash table (2^16) */
+
+ struct qmsg_t { /* Holder for queued packets */