busybox-udhcpc:
	* udhcpc of busybox 1.21 will not compile with kernels missing PACKET_AUXDATA
	* this patch allows usage of older busybox code if used with older kernels
	* reported [http://www.ip-phone-forum.de/showthread.php?t=264998 here in ippf]


git-svn-id: file:///var/svn/freetz/trunk@11362 149334a1-2f27-0410-a3b9-fc62619ac1e6