virnetdevbridge: Include virnetlink.h more often

The whole point of virnetlink.h is that it hides away the build
time dependency on netlink. It wraps netlink functions in our
functions which then have a stub implementation in case netlink
support was disabled.

Though, netlink is still Linux specific, so keep it in the
'#ifdef __linux__` block to cause a compilation error should
anybody try to use any of the wrapped functions on non-Linux.

Signed-off-by: Michal Privoznik <[email protected]>
Reviewed-by: Peter Krempa <[email protected]>

Author: zippy2

src/util/virnetdevbridge.c

@@ -30,9 +30,7 @@
 #endif
 
 #ifdef __linux__
-# if defined(WITH_LIBNL)
-#  include "virnetlink.h"
-# endif
+# include "virnetlink.h"
 # include <linux/sockios.h>
 # include <linux/param.h>     /* HZ                 */
 # include <linux/in6.h>