net: Rename VLANClientState to NetClientState

The vlan feature is no longer part of net core.  Rename VLANClientState
to NetClientState because net clients are not explicitly associated with
a vlan at all, instead they have a peer net client to which they are
connected.

This patch is a mechanical search-and-replace except for a few
whitespace fixups where changing VLANClientState to NetClientState
misaligned whitespace.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
diff --git a/hw/ne2000.c b/hw/ne2000.c
index 399d340..2131770 100644
--- a/hw/ne2000.c
+++ b/hw/ne2000.c
@@ -165,7 +165,7 @@
     return 0;
 }
 
-int ne2000_can_receive(VLANClientState *nc)
+int ne2000_can_receive(NetClientState *nc)
 {
     NE2000State *s = DO_UPCAST(NICState, nc, nc)->opaque;
 
@@ -176,7 +176,7 @@
 
 #define MIN_BUF_SIZE 60
 
-ssize_t ne2000_receive(VLANClientState *nc, const uint8_t *buf, size_t size_)
+ssize_t ne2000_receive(NetClientState *nc, const uint8_t *buf, size_t size_)
 {
     NE2000State *s = DO_UPCAST(NICState, nc, nc)->opaque;
     int size = size_;
@@ -703,7 +703,7 @@
     memory_region_init_io(&s->io, &ne2000_ops, s, "ne2000", size);
 }
 
-static void ne2000_cleanup(VLANClientState *nc)
+static void ne2000_cleanup(NetClientState *nc)
 {
     NE2000State *s = DO_UPCAST(NICState, nc, nc)->opaque;