drm/amdgpu: Update PSP TA Invoke to use common TA context as input

Updated invoke to use new common TA structure similarily to load/unload.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>