drm/amd/powerplay: add uvd/vce dpm enabling flag to fix the performance issue for CZ

BugLink: http://bugs.launchpad.net/bugs/1580526

commit 60123300 upstream.

Set the UVD and VCE DPM flags otherwise UVD and VCE DPM won't get enabled.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alberto Milone <alberto.milone@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>

drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c

@@ -241,6 +241,11 @@ static int cz_initialize_dpm_defaults(struct pp_hwmgr *hwmgr)
 	phm_cap_set(hwmgr->platform_descriptor.platformCaps,
 					PHM_PlatformCaps_DynamicUVDState);
 
+	phm_cap_set(hwmgr->platform_descriptor.platformCaps,
+			PHM_PlatformCaps_UVDDPM);
+	phm_cap_set(hwmgr->platform_descriptor.platformCaps,
+			PHM_PlatformCaps_VCEDPM);
+
 	cz_hwmgr->cc6_settings.cpu_cc6_disable = false;
 	cz_hwmgr->cc6_settings.cpu_pstate_disable = false;
 	cz_hwmgr->cc6_settings.nb_pstate_switch_disable = false;