Final release 264.8.0 tagged via concourse

Bump Ubuntu OS images for USN-3582-2: Linux kernel vulnerabilities

[#155439272](https://www.pivotaltracker.com/story/show/155439272)

Bump OS images

[#154945013](https://www.pivotaltracker.com/story/show/154945013)

Signed-off-by: Danny Berger <[email protected]>

Bump ubuntu trusty for USN-3540-2: Linux kernel (Xenial HWE) vulnerab…

…ilities

[#154195049](https://www.pivotaltracker.com/story/show/154195049)

Bump ubuntu trusty for USN-3540-2: Linux kernel (Xenial HWE) vulnerab…

…ilities

[#154195049](https://www.pivotaltracker.com/story/show/154195049)

Final release 264.7.0 tagged via concourse

Bump OS images

USN-3534-1: GNU C Library vulnerabilities

[#154416242](https://www.pivotaltracker.com/story/show/154416242)

bump os-images for cve

[#154215922](https://www.pivotaltracker.com/story/show/154215922)

Signed-off-by: J. Evelyn Quintana <[email protected]>

bump os-images for cve

[#154194991](https://www.pivotaltracker.com/story/show/154194991)

bump os-images for cve

[#154215922](https://www.pivotaltracker.com/story/show/154215922)

Signed-off-by: J. Evelyn Quintana <[email protected]>