Merge tag 'v3.18.26' into linux-linaro-lsk-v3.18

Linux 3.18.26

# gpg: Signature made Mon 25 Jan 2016 15:06:44 GMT using RSA key ID 97772CDC
# gpg: requesting key 97772CDC from hkp server the.earth.li
# gpg: key 97772CDC: public key "Sasha Levin <sasha.levin@oracle.com>" imported
# gpg: no ultimately trusted keys found
# gpg: Total number processed: 1
# gpg:               imported: 1  (RSA: 1)
# gpg: Good signature from "Sasha Levin <sasha.levin@oracle.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: E27E 5D8A 3403 A2EF 6687  3BBC DEA6 6FF7 9777 2CDC