rockchip: update make_idb.py

make_idb.py only support RK3288 before, add chip parameter, so we can
support RK3399 either.

Change-Id: I6811acb7f0cdaf1930af9942a70db54765d544d5
Signed-off-by: huang lin <hl@rock-chips.com>
Reviewed-on: https://review.coreboot.org/13913
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/soc/rockchip/rk3288/Makefile.inc

@@ -74,6 +74,6 @@ CPPFLAGS_common += -Isrc/soc/rockchip/rk3288/include/
 $(objcbfs)/bootblock.bin: $(objcbfs)/bootblock.raw.bin
 	@printf "Generating: $(subst $(obj)/,,$(@))\n"
 	@mkdir -p $(dir $@)
-	@$(IDBTOOL) --from=$< --to=$@ --enable-align
+	@$(IDBTOOL) --from=$< --to=$@ --enable-align --chip=RK32
 
 endif