RDMA/cxgb3: Use AF_INET for sin_family field

Elsewhere the sin_family field holds a value with a name of the form
AF_..., so it seems reasonable to do so here as well. Also the values
of PF_INET and AF_INET are the same.

The Coccinelle semantic patch that makes this change is as follows:

// <smpl>
@@
struct sockaddr_in sip;
@@

(
sip.sin_family ==
- PF_INET
+ AF_INET
|
sip.sin_family !=
- PF_INET
+ AF_INET
|
sip.sin_family =
- PF_INET
+ AF_INET
)
// </smpl>

Signed-off-by: Amitoj Kaur Chawla <[e-mail]>
Signed-off-by: Doug Ledford <[e-mail]>

drivers/infiniband/hw/cxgb3/iwch_cm.c

···
 	state_set(&child_ep->com, CONNECTING);
 	child_ep->com.tdev = tdev;
 	child_ep->com.cm_id = NULL;
-	child_ep->com.local_addr.sin_family = PF_INET;
+	child_ep->com.local_addr.sin_family = AF_INET;
 	child_ep->com.local_addr.sin_port = req->local_port;
 	child_ep->com.local_addr.sin_addr.s_addr = req->local_ip;
-	child_ep->com.remote_addr.sin_family = PF_INET;
+	child_ep->com.remote_addr.sin_family = AF_INET;
 	child_ep->com.remote_addr.sin_port = req->peer_port;
 	child_ep->com.remote_addr.sin_addr.s_addr = req->peer_ip;
 	get_ep(&parent_ep->com);