[IRDA]: IrDA prototype fixes

Every file should #include the header files containing the prototypes
of it's global functions.

In this case this showed that the prototype of irlan_print_filter()
was wrong which is also corrected in this patch.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/irda/qos.c b/net/irda/qos.c
index df732d5..ddfb5c5 100644
--- a/net/irda/qos.c
+++ b/net/irda/qos.c
@@ -37,6 +37,7 @@
 #include <net/irda/parameters.h>
 #include <net/irda/qos.h>
 #include <net/irda/irlap.h>
+#include <net/irda/irlap_frame.h>
 
 /*
  * Maximum values of the baud rate we negociate with the other end.