[PATCH mlxsw.wiki] ACLs: Update vlan_id key is only for ingress

[Nir Dotan]

As of FW 13_17XX_XX vlan_id key is not supported for egress.
Hence update the wiki to specify vlan_id key is for ingress only.

Signed-off-by: Nir Dotan <nird at mellanox.com>
---
 ACLs.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ACLs.md b/ACLs.md
index 1f35f40..39842bc 100644
--- a/ACLs.md
+++ b/ACLs.md
@@ -59,7 +59,7 @@ Examples](#more-examples) section.
 * src_port [4.11]
 * dst_port [4.11]
 * vlan_prio [4.12]
-* vlan_id [4.12]
+* vlan_id (ingress direction) [4.12]
 * tcp_flags [4.13]
 * ip_ttl [4.14]
 * ip_tos [4.14]
-- 
2.8.4