octeontx2-pf: Use correct struct reference in test condition

Fix the typo/copy-paste error by replacing struct variable ah_esp_mask name
by ah_esp_hdr.
Issue identified using doublebitand.cocci Coccinelle semantic patch.

Fixes: b7cf966 ("octeontx2-pf: Add flow classification using IP next level protocol")
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Deepak R Varma <[email protected]>
Link: https://lore.kernel.org/r/Y/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: drvgithubuser

drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c

@@ -793,7 +793,7 @@ static int otx2_prepare_ipv6_flow(struct ethtool_rx_flow_spec *fsp,
 
 		/* NPC profile doesn't extract AH/ESP header fields */
 		if ((ah_esp_mask->spi & ah_esp_hdr->spi) ||
-		    (ah_esp_mask->tclass & ah_esp_mask->tclass))
+		    (ah_esp_mask->tclass & ah_esp_hdr->tclass))
 			return -EOPNOTSUPP;
 
 		if (flow_type == AH_V6_FLOW)