Check if cv32e40x_pkg can be removed from XIF interface defs

Created by: Silabs-ArjanB

https://github.com/openhwgroup/cv32e40x/blob/bae6ff504971e34b4ddc2cb8cf04446c0a158c42/rtl/cv32e40x_if_xif.sv#L31

Check if cv32e40x_pkg can be removed from XIF interface defs such that file can more easily be reused by others