drm/radeon/kms: add dpm support for KB/KV

This adds dpm support for KB/KV asics.  This includes:
- dynamic engine clock scaling
- dynamic voltage scaling
- power containment
- shader power scaling

Set radeon.dpm=1 to enable.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --cc drivers/gpu/drm/radeon/Makefile
Simple merge

diff --cc drivers/gpu/drm/radeon/cik.c
Simple merge

diff --cc drivers/gpu/drm/radeon/cikd.h
Simple merge

diff --cc drivers/gpu/drm/radeon/kv_dpm.c
Simple merge

diff --cc drivers/gpu/drm/radeon/kv_dpm.h
Simple merge

diff --cc drivers/gpu/drm/radeon/kv_smc.c
Simple merge

diff --cc drivers/gpu/drm/radeon/ppsmc.h
Simple merge

diff --cc drivers/gpu/drm/radeon/radeon_asic.c
Simple merge

diff --cc drivers/gpu/drm/radeon/radeon_asic.h
Simple merge

diff --cc drivers/gpu/drm/radeon/radeon_pm.c
Simple merge

diff --cc drivers/gpu/drm/radeon/smu7.h
Simple merge

diff --cc drivers/gpu/drm/radeon/smu7_fusion.h
Simple merge