drm/amdgpu: check thunderbolt before switcheroo registration

Introduce a helper to consolidate the vga_switcheroo registration condition
used by the init and fini paths.

Keep the explicit pci_is_thunderbolt_attached() check, as dev_is_removable()
does not provide equivalent coverage for Thunderbolt-attached GPUs.
This ensures such devices remain excluded from switcheroo registration while
preserving the existing PX and Apple gmux handling.

Cc: stable@vger.kernel.org
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

0 files changed, 0 insertions, 0 deletions