release ex mode after hw_init if no KIQ

[Pixel Ding]

Hi Oded,

There're 3 patches for releasing exclusive mode after hw_init if
KIQ is not enabled.

[PATCH 1/3] drm/amdgpu: wrap allocation for amdgpu_device
Allocation of amdgpu_device and base fields are wrapped put it ahead.

[PATCH 2/3] drm/amdgpu: release exclusive mode after hw_init if no

[PATCH 3/3] drm/amdkfd: pass kgd to kfd inside device_init
Still don't pass kgd into probe callback in case of that it's used
unsafely.

Please help review. Thanks very much!