net: move gro definitions to include/net/gro.h

include/linux/netdevice.h became too big, move gro stuff
into include/net/gro.h

Signed-off-by: Eric Dumazet <edumazet@google.com>

drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c

@@ -25,6 +25,7 @@
 #include <linux/ip.h>
 #include <linux/crash_dump.h>
 #include <net/tcp.h>
+#include <net/gro.h>
 #include <net/ipv6.h>
 #include <net/ip6_checksum.h>
 #include <linux/prefetch.h>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -37,6 +37,7 @@
 #include <linux/if_bridge.h>
 #include <linux/rtc.h>
 #include <linux/bpf.h>
+#include <net/gro.h>
 #include <net/ip.h>
 #include <net/tcp.h>
 #include <net/udp.h>

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

@@ -17,6 +17,7 @@
 #include <linux/skbuff.h>
 #include <linux/sctp.h>
 #include <net/gre.h>
+#include <net/gro.h>
 #include <net/ip6_checksum.h>
 #include <net/pkt_cls.h>
 #include <net/tcp.h>

drivers/net/ethernet/mellanox/mlx5/core/en_rx.c

@@ -37,6 +37,7 @@
 #include <net/ip6_checksum.h>
 #include <net/page_pool.h>
 #include <net/inet_ecn.h>
+#include <net/gro.h>
 #include <net/udp.h>
 #include <net/tcp.h>
 #include "en.h"

drivers/net/ethernet/qlogic/qede/qede_fp.c

@@ -10,6 +10,7 @@
 #include <linux/bpf_trace.h>
 #include <net/udp_tunnel.h>
 #include <linux/ip.h>
+#include <net/gro.h>
 #include <net/ipv6.h>
 #include <net/tcp.h>
 #include <linux/if_ether.h>

drivers/net/geneve.c

@@ -17,6 +17,7 @@
 #include <net/gro_cells.h>
 #include <net/rtnetlink.h>
 #include <net/geneve.h>
+#include <net/gro.h>
 #include <net/protocol.h>
 
 #define GENEVE_NETDEV_VER	"0.6"

drivers/net/vxlan.c

@@ -17,6 +17,7 @@
 #include <linux/ethtool.h>
 #include <net/arp.h>
 #include <net/ndisc.h>
+#include <net/gro.h>
 #include <net/ipv6_stubs.h>
 #include <net/ip.h>
 #include <net/icmp.h>