commit 4369a69e upstream.

Disable dpm on certain problematic boards rather than
disabling dpm for the entire chip family since most
boards work fine.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386534
https://bugzilla.kernel.org/show_bug.cgi?id=83731Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>