panvk: Disallow unknown GPU models early in physical device init

We rely on the panfrost_model details around the codebase, if it's not
known this is a problem.

As a result, we will now disallow anything that isn't known like what
we do on Gallium.

Fixes: c95ef9e323 ("panvk: Fix NULL deref on model name when device isn't supported")
Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Suggested-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33371>

src/panfrost/vulkan/panvk_physical_device.c

@@ -911,6 +911,14 @@ panvk_physical_device_init(struct panvk_physical_device *device,
 
    unsigned arch = pan_arch(device->kmod.props.gpu_prod_id);
 
+   if (!device->model) {
+      result = panvk_errorf(instance, VK_ERROR_INCOMPATIBLE_DRIVER,
+                            "Unknown gpu_id (%#x) or variant (%#x)",
+                            device->kmod.props.gpu_prod_id,
+                            device->kmod.props.gpu_variant);
+      goto fail;
+   }
+
    switch (arch) {
    case 6:
    case 7: