drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types

gvt->types needs to be freed on error.

Fixes: bc90d097 ("drm/i915/gvt: define weight according to vGPU type")
Reported-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: https://lore.kernel.org/r/20220923092652.100656-2-hch@lst.de


[aw: Correct fixes commit ID as reported by Stephen Rothwell]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>