octeontx2-af: cn10k: mcs: Add debugfs support

This patch adds debugfs entry to dump MCS secy, sc,
sa, flowid and port stats. This helps in debugging
the packet path and to figure out where exactly packet
was dropped.
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/octeontx2/af/rvu.h

@@ -64,6 +64,10 @@ struct rvu_debugfs {
 	struct dentry *nix;
 	struct dentry *npc;
 	struct dentry *cpt;
+	struct dentry *mcs_root;
+	struct dentry *mcs;
+	struct dentry *mcs_rx;
+	struct dentry *mcs_tx;
 	struct dump_ctx npa_aura_ctx;
 	struct dump_ctx npa_pool_ctx;
 	struct dump_ctx nix_cq_ctx;