net: remove interrupt.h inclusion from netdevice.h

* remove interrupt.g inclusion from netdevice.h -- not needed
* fixup fallout, add interrupt.h and hardirq.h back where needed.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/hardware/mISDN/mISDNipac.c

@@ -20,6 +20,7 @@
  *
  */
 
+#include <linux/irqreturn.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/mISDNhw.h>