monitor: Restrict pic/irq_info to supporting targets

This allows to drop various stubs and move the i8359 into hwlib.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/hw/etraxfs.h b/hw/etraxfs.h
index 1554b0b..24e8fd8 100644
--- a/hw/etraxfs.h
+++ b/hw/etraxfs.h
@@ -22,6 +22,7 @@
  * THE SOFTWARE.
  */
 
+#include "net.h"
 #include "etraxfs_dma.h"
 
 qemu_irq *cris_pic_init_cpu(CPUState *env);