Add support for GPU memory controller v11.

v1: Add support for gmc v11.0
    Add gmc 11 block (Tianci)
v2: drop unused amdgpu_bo_late_init (Hawking)
v3: squash in various fix
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>