net: make IPaddr type big endian

for use with sparse.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>

include/net.h

@@ -39,7 +39,7 @@
 #define PKTALIGN	ARCH_DMA_MINALIGN
 
 /* IPv4 addresses are always 32 bits in size */
-typedef u32		IPaddr_t;
+typedef __be32		IPaddr_t;
 
 
 /**