3.12-stable patches

3.12-stable patches

added patches:
	bnx2x-fix-dma-unmapping-of-tso-split-bds.patch
	bpf-do-not-use-reciprocal-divide.patch
	fib_frontend-fix-possible-null-pointer-dereference.patch
	ieee802154-fix-memory-leak-in-ieee802154_add_iface.patch
	inet_diag-fix-inet_diag_dump_icsk-timewait-socket-state-logic.patch
	ip_tunnel-clear-ipcb-in-ip_tunnel_xmit-in-case-dst_link_failure-is-called.patch
	net-avoid-reference-counter-overflows-on-fib_rules-in-multicast-forwarding.patch
	net-fix-memory-leak-if-tproxy-used-with-tcp-early-demux.patch
	net-gre-use-icmp_hdr-to-get-inner-ip-header.patch
	net-rds-fix-per-cpu-helper-usage.patch
	net-usbnet-fix-sg-initialisation.patch
	net-via-rhine-fix-tx_timeout-handling.patch
	net-vxlan-share-rx-skb-de-marking-and-checksum-checks-with-ovs.patch
	s390-bpf-jit-fix-32-bit-divisions-use-unsigned-divide-instructions.patch
	tcp-metrics-avoid-duplicate-entries-with-the-same-destination-ip.patch
	xen-netfront-fix-resource-leak-in-netfront.patch