[Mesa-stable] Late nominations

[Emil Velikov]

A few worthy fixes missing the table tag. Should be 11.1 and 11.2 material

commit b89708f95fafc458cc79bc210407b723a0f0f78c
Author: Thomas Hindoe Paaboel Andersen <phomes at gmail.com>
Date:   Wed Apr 13 03:06:05 2016 +0200

    tgsi: fix buffer overflow

commit 6d6525a377250865cc6baa2c9cd5c6c0b6cd3f9c
Author: Thomas Hindoe Paaboel Andersen <phomes at gmail.com>
Date:   Wed Apr 13 03:06:06 2016 +0200

    softpipe: avoid buffer overflow

    Signed-off-by: Dave Airlie <airlied at redhat.com>


commit 047e3264f67bc54365be7b0e163b6910a9e9de3a
Author: Iurie Salomov <iurcic at gmail.com>
Date:   Tue Apr 12 23:24:30 2016 +0100

    va: check null context in vlVaDestroyContext



-Emil