nrf_wifi: Add ops to set and get checksum status

Add helpers to get/set checksum status in the network buffer.
This are missing in linux driver.

Signed-off-by: Kapil Bhatt <kapil.bhatt@nordicsemi.no>

src/shim.c

@@ -336,6 +336,20 @@ static unsigned char shim_nbuf_get_priority(void *nbuf)
 	return skb->priority;
 }
 
+static unsigned char shim_nbuf_get_chksum_done(void *nbuf)
+{
+	struct sk_buff *skb = (struct sk_buff *)nbuf;
+
+	return skb->csum_complete_sw;
+}
+
+static void shim_nbuf_set_chksum_done(void *nbuf, unsigned char chksum_done)
+{
+	struct sk_buff *skb = (struct sk_buff *)nbuf;
+
+	skb->csum_complete_sw = (bool)chksum_done;
+}
+
 static void *shim_llist_node_alloc(void)
 {
 	struct shim_llist_node *llist_node = NULL;
@@ -1080,6 +1094,8 @@ const struct nrf_wifi_osal_ops nrf_wifi_os_ops = {
 	.nbuf_data_push = shim_nbuf_data_push,
 	.nbuf_data_pull = shim_nbuf_data_pull,
 	.nbuf_get_priority = shim_nbuf_get_priority,
+	.nbuf_get_chksum_done = shim_nbuf_get_chksum_done,
+	.nbuf_set_chksum_done = shim_nbuf_set_chksum_done,
 
 	.tasklet_alloc = shim_tasklet_alloc,
 	.tasklet_free = shim_tasklet_free,