vlib: fix cli process stack overflow

Type: fix

Some cli processes, including configuring an test flow
on an i40e interface consume more than the currently
available stack space.

Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
Change-Id: I3df53d251cd43286f94647384d6e50a463bad15c
(cherry picked from commit 2fd44a00aa26188ca75f0accd734f21758c199bf)

src/vlib/unix/cli.c

@@ -2864,7 +2864,7 @@ unix_cli_file_add (unix_cli_main_t * cm, char *name, int fd)
       static vlib_node_registration_t r = {
 	.function = unix_cli_process,
 	.type = VLIB_NODE_TYPE_PROCESS,
-	.process_log2_n_stack_bytes = 17,
+	.process_log2_n_stack_bytes = 18,
       };
 
       r.name = name;