amd/amdgpu: Reduce unnecessary repetitive GPU resets

In multiple GPUs case, after a GPU has started
resetting all GPUs on hive, other GPUs do not
need to trigger GPU reset again.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>