udp: Move UDP_MAX_FRAMES to udp.c

Recent changes mean that this define is no longer used anywhere except in
udp.c.  Move it back into udp.c from udp_internal.h.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

udp.c

@@ -116,6 +116,8 @@
 #include "udp_internal.h"
 #include "udp_vu.h"
 
+#define UDP_MAX_FRAMES		32  /* max # of frames to receive at once */
+
 /* Maximum UDP data to be returned in ICMP messages */
 #define ICMP4_MAX_DLEN 8
 #define ICMP6_MAX_DLEN (IPV6_MIN_MTU			\

udp_internal.h

@@ -8,8 +8,6 @@
 
 #include "tap.h" /* needed by udp_meta_t */
 
-#define UDP_MAX_FRAMES		32  /* max # of frames to receive at once */
-
 /**
  * struct udp_payload_t - UDP header and data for inbound messages
  * @uh:		UDP header