drm/amdgpu: move amdgpu_gmc_noretry_set after ip_versions populated

otherwise adev->ip_versions is still empty when amdgpu_gmc_noretry_set
is called.

Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>