make flash: re-initialize the FPGA after flash complete

fpga/Makefile

@@ -71,7 +71,7 @@ program:
 
 # Permanent programming in flash
 flash:
-	$(QPGM) -c '$(JTAG_CABLE)' -m JTAG -o 'pvbi;$(outdir)/$(PROJECT).jic'
+	$(QPGM) -c '$(JTAG_CABLE)' -m JTAG -i -o 'pvbi;$(outdir)/$(PROJECT).jic'
 
 %.deps: %.qsf scripts/qsfdeps.pl
 	$(PERL) scripts/qsfdeps.pl $< $* > $@