Makefile: move endian test into Makefile.d

flashrom-stable:
Somewhat restored the original solution using pre-defined macros.

Change-Id: I0c2420fd60d7d6a23c94c9962b06bfd7f3c86ad8
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.de>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/58270
Original-Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/72243
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
3 files changed