Do not annotate base types for enums
Do not annotate base types for enums

Signed-off-by: Rafal Kapuscik <6a7be3d4d2afb8bd1d0b737d2f237a3071b5d393@antmicro.com>

chipsalliance/yosys-f4pga-plugins,chipsalliance/yosys-f4pga-plugins