9pfs: rename virtio-9p-posix-acl.c to 9p-posix-acl.c

This file is not virtio specific. Rename it to use generic name.

Fix comment and remove unneeded inclusion of virtio.h.
Signed-off-by: NWei Liu <wei.liu2@citrix.com>
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

hw/9pfs/virtio-9p-posix-acl.c → hw/9pfs/9p-posix-acl.c

 /*
- * Virtio 9p system.posix* xattr callback
+ * 9p system.posix* xattr callback
  *
  * Copyright IBM, Corp. 2010
  *
@@ -13,7 +13,6 @@
 
 #include <sys/types.h>
 #include "qemu/xattr.h"
-#include "hw/virtio/virtio.h"
 #include "virtio-9p.h"
 #include "fsdev/file-op-9p.h"
 #include "virtio-9p-xattr.h"

hw/9pfs/Makefile.objs

 common-obj-y  = virtio-9p.o
 common-obj-y += 9p-local.o virtio-9p-xattr.o
-common-obj-y += virtio-9p-xattr-user.o virtio-9p-posix-acl.o
+common-obj-y += virtio-9p-xattr-user.o 9p-posix-acl.o
 common-obj-y += coth.o cofs.o codir.o cofile.o
 common-obj-y += coxattr.o virtio-9p-synth.o
 common-obj-$(CONFIG_OPEN_BY_HANDLE) +=  9p-handle.o