panvk: Add more allocation checks in create_device

That's not enough to make
"dEQP-VK.api.device_init.create_instance_device_intentional_alloc_fail.basic"
happy but contribute to it.

Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29783>