v3dv: use common interfaces for shader modules

v3dv: use common interfaces for shader modules

squashed changes from Alejandro Piñeiro <apinheiro@igalia.com>:

Add call to vk_object_base_init on internal shader_module: we have
some cases where internally we have some shader modules that we don't
create through CreateShaderModule, so in this case we need to manually
call base_init. Not sure why this wasn't needed before.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9508>