net: axienet: Fix check for partial TX checksum

Due to a typo, the code checked the RX checksum feature in the TX path.

Fixes: 8a3b7a2 ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://lore.kernel.org/r/20231122004219.3504219-1-samuel.holland@sifive.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: SiFiveHolland

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

@@ -822,7 +822,7 @@ axienet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		if (lp->features & XAE_FEATURE_FULL_TX_CSUM) {
 			/* Tx Full Checksum Offload Enabled */
 			cur_p->app0 |= 2;
-		} else if (lp->features & XAE_FEATURE_PARTIAL_RX_CSUM) {
+		} else if (lp->features & XAE_FEATURE_PARTIAL_TX_CSUM) {
 			csum_start_off = skb_transport_offset(skb);
 			csum_index_off = csum_start_off + skb->csum_offset;
 			/* Tx Partial Checksum Offload Enabled */