octeontx2-af: Add IPv6 fields to default MKEX

Added some IPv6 protocol fields to the default MKEX profile.
They include everything from the beginning of IP header and up to
source address. The pattern occupies full KW2 in MCAM entry.
Only one out of two LD registers for this protocol is used.

Signed-off-by: Vidhya Vidhyaraman <vraman@marvell.com>
Acked-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -13391,6 +13391,11 @@ static const struct npc_mcam_kex npc_mkex_default = {
 				/* TOS: 1 byte, KW1[63:56] */
 				KEX_LD_CFG(0x0, 0x1, 0x1, 0x0, 0xf),
 			},
+			/* Layer C: IPv6 */
+			[NPC_LT_LC_IP6] = {
+				/* Everything up to SADDR: 8 bytes, KW2[63:0] */
+				KEX_LD_CFG(0x07, 0x0, 0x1, 0x0, 0x10),
+			},
 		},
 		[NPC_LID_LD] = {
 			/* Layer D:UDP */