Revert "UBUNTU: SAUCE: (no-up) rename the adv7511 drm driver to adv7511_drm"

Revert "UBUNTU: SAUCE: (no-up) rename the adv7511 drm driver to adv7511_drm"

This reverts commit ec786666ca5a562cc722bfd137f9f09b271cbe2a.

adv7511 media driver was renamed by upstream commit

commit b2ce5617dad254230551feda3599f2cc68e53ad8
Author: Anders Roxell <anders.roxell@linaro.org>
Date:   Wed Jun 12 12:19:35 2019 -0400

    media: i2c: fix warning same module names

so this commit can be reverted now.

Signed-off-by: Timo Aaltonen <timo.aaltonen@canonical.com>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>