drm/amd: add new gfx8 register definitions for EDC

EDC is a RAS feature for on chip memory.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2015-11-24 17:42:02 -05:00
commit aa5e24e5f8