build/gowin/apicula: only append _packer_opts with known use_xxx (drop options only required by Gowin's software)

litex/build/gowin/apicula.py

@@ -60,6 +60,8 @@ class GowinApiculaToolchain(YosysNextPNRToolchain):
         # use_mspi_as_gpio and friends
         for option, value in self.options.items():
             if option.startswith("use_") and value:
+                # Not all options are supported and may be just Gowin's software check
+                if option not in ["use_mode_as_gpio"]:
                     self._packer_opts += " --" + option[4:]
 
         YosysNextPNRToolchain.finalize(self)