radeon minor fixes, and pci id addition.
* 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: don't do mst probing if MST isn't enabled.
drm/radeon: add new bonaire pci id
drm/radeon: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling