3.18-stable patches

3.18-stable patches

added patches:
	dccp-fix-a-memleak-for-dccp_feat_init-err-process.patch
	ipv4-initialize-fib_trie-prior-to-register_netdev_notifier-call.patch
	ipv6-avoid-overflow-of-offset-in-ip6_find_1stfragopt.patch
	mcs7780-fix-initialization-when-config_vmap_stack-is-enabled.patch
	net-phy-correctly-process-phy_halted-in-phy_stop_machine.patch
	net-zero-terminate-ifr_name-in-dev_ifname.patch
	packet-fix-use-after-free-in-prb_retire_rx_blk_timer_expired.patch
	rtnetlink-allocate-more-memory-for-dev_set_mac_address.patch
	sctp-don-t-dereference-ptr-before-leaving-_sctp_walk_-params-errors.patch
	sctp-fix-the-check-for-_sctp_walk_params-and-_sctp_walk_errors.patch
	xen-netback-correctly-schedule-rate-limited-queues.patch