radv: set num_components on vulkan_resource_index intrinsic

In 61e009d2 we changed the number of components in the vulkan_resource_index intrinsic and forgot the update Radv's code for it.

Signed-off-by: Lionel Landwerlin lionel.g.landwerlin@intel.com Fixes: 61e009d2 ("spirv: Use the same types for resource indices as pointers")