util/ifdtool/ifdtool.c: Clean up

- Remove functions that are only called in one place.
- Add warning if user doesn't supply a platform, since that can lead to
  dumps/layouts that do not include all IFD regions without the user
  even reliazing it.
- Inform the User if IFD or Flashmap is not found.
- Inform the User if there is not a single match between FMAP and IFD
  region
- Avoid printing usage if not specifically asked by the user.
  It tends to obfuscate the original error message.
- Keep indentation consistent throughout the file.
- Remove typedefs (coreboot coding style)

Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: I7bbce63ecb2e920530394766f58b5ea6f72852e9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73448
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>

src/southbridge/intel/common/firmware/Makefile.inc

@@ -49,6 +49,7 @@ add_intel_firmware: $(obj)/coreboot.pre $(IFDTOOL)
 	dd if=$(IFD_BIN_PATH) \
 		of=$(obj)/coreboot.pre conv=notrunc >/dev/null 2>&1
 ifeq ($(CONFIG_VALIDATE_INTEL_DESCRIPTOR),y)
+	printf "    IFDTOOL    validate IFD against FMAP\n"
 	$(objutil)/ifdtool/ifdtool \
 		$(IFDTOOL_USE_CHIPSET) \
 		-t $(obj)/coreboot.pre