driver: crypto: scheduler: fix session size computation

The crypto scheduler session size computation was taking
into account only the worker session sizes and not its own.

Fixes: e2af4e4 ("crypto/scheduler: support DOCSIS security protocol")
Cc: stable@dpdk.org

Signed-off-by: Julien Hascoet <ju.hascoet@gmail.com>
Acked-by: Kai Ji <kai.ji@intel.com>

drivers/crypto/scheduler/scheduler_pmd_ops.c

@@ -185,7 +185,7 @@ scheduler_session_size_get(struct scheduler_ctx *sched_ctx,
 		uint8_t session_type)
 {
 	uint8_t i = 0;
-	uint32_t max_priv_sess_size = 0;
+	uint32_t max_priv_sess_size = sizeof(struct scheduler_session_ctx);
 
 	/* Check what is the maximum private session size for all workers */
 	for (i = 0; i < sched_ctx->nb_workers; i++) {