net: hsr: define and use proto_ops ptrs to handle hsr specific frames

As a preparatory patch to introduce PRP, refactor the code specific to
handling HSR frames into separate functions and call them through
proto_ops function pointers.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/hsr/hsr_device.c

@@ -440,9 +440,12 @@ static struct device_type hsr_type = {
 
 static struct hsr_proto_ops hsr_ops = {
 	.send_sv_frame = send_hsr_supervision_frame,
+	.create_tagged_frame = hsr_create_tagged_frame,
+	.get_untagged_frame = hsr_get_untagged_frame,
+	.fill_frame_info = hsr_fill_frame_info,
 };
 
-struct hsr_proto_ops prp_ops = {
+static struct hsr_proto_ops prp_ops = {
 	.send_sv_frame = send_prp_supervision_frame,
 };