Fix cleanup target
Fix cleanup target

Signed-off-by: Tomasz Michalak <a2fdaa543b4cc5e3d6cd8672ec412c0eb393b86e@antmicro.com>

SymbiFlow/yosys-f4pga-plugins,antmicro/yosys-symbiflow-plugins,antmicro/yosys-symbiflow-plugins,chipsalliance/yosys-f4pga-plugins,SymbiFlow/yosys-symbiflow-plugins,SymbiFlow/yosys-f4pga-plugins,SymbiFlow/yosys-symbiflow-plugins,antmicro/yosys-symbiflow-plugins,SymbiFlow/yosys-f4pga-plugins,chipsalliance/yosys-f4pga-plugins,SymbiFlow/yosys-symbiflow-plugins