libdrm: Changes to 'ubuntu-precise'

[Maarten Lankhorst <mlankhorst-guest@alioth.debian.org>]

New branch 'ubuntu-precise' available with the following commits:
commit 02c7db2c15f9b02bad6a0f7b1d8920073b7b602b
Author: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date:   Mon Apr 22 15:46:59 2013 +0200

    release to precise

commit 645deada451406398728c7ce524b40579cbc824d
Author: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date:   Mon Apr 22 11:09:36 2013 +0200

    Copy package from raring, and re-enable libdrm-nouveau1a. (LP: #1171340)

commit dbf1e1a339a5c7c6a4c1e61b7300ab7863f1f1b2
Merge: 7f1aba0 29e7b2f
Author: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date:   Mon Apr 22 11:05:37 2013 +0200

    Merge branch 'ubuntu' into ubuntu-quantal