* missing file to build added, as mentioned by Mathew Bradford

  * Makefile regenerated

rtl/embedded/Makefile.fpc

@@ -236,7 +236,7 @@ CPU_UNITS_DEFINED=1
 endif
 ifeq ($(SUBARCH),rv32imac)
 override FPCOPT+=-Cprv32imac
-CPU_UNITS=$(FE310G000UNIT) $(FE310G002UNIT) $(GD32VF103XXUNIT)
+CPU_UNITS=CH32VxBootstrap $(FE310G000UNIT) $(FE310G002UNIT) $(GD32VF103XXUNIT)
 CPU_UNITS_DEFINED=1
 endif
 ifeq ($(SUBARCH),rv32i)