soc/intel/raptorlake: Fall back to Intel microcode repo

soc/intel/raptorlake: Fall back to Intel microcode repo

With the release 20240910 of the Intel microcode repository, it also
includes the updated microcode file with version 0x129, which makes the
one from the coreboot blobs repo superfluous. Thus, use the one from the
Intel repository again.

Change-Id: I7fb58874719a8373072419e34b3f8923f7db927d
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84295
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>