Add fine-grained per-ASIC TMZ support.

At the moment TMZ support is experimental for all
ASICs which support it.
Signed-off-by: NLuben Tuikov <luben.tuikov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>