Merge 3.18.136 into android-3.18

Changes in 3.18.136
	net: fix IPv6 prefix route residue
	sky2: Increase D3 delay again
	tcp: tcp_v4_err() should be more careful
	tcp: clear icsk_backoff in tcp_write_queue_purge()
	vxlan: test dev->flags & IFF_UP before calling netif_rx()
	vsock: cope with memory allocation failure at socket creation time
	net: stmmac: Fix a race in EEE enable callback
	net: ipv4: use a dedicated counter for icmp_v4 redirect packets
	hwmon: (lm80) Fix missing unlock on error in set_fan_div()
	kvm: fix kvm_ioctl_create_device() reference counting (CVE-2019-6974)
	net/x25: do not hold the cpu too long in x25_new_lci()
	mISDN: fix a race in dev_expire_timer()
	ax25: fix possible use-after-free
	Linux 3.18.136

Change-Id: Ia2dc3ff65f77e7e12360bc156476565969bccd3d
Signed-off-by: Greg Kroah-Hartman <>