AUTHORS: Move src/cpu/intel copyrights into AUTHORS file

As discussed on the mailing list and voted upon, the coreboot project
is going to move the majority of copyrights out of the headers and into
an AUTHORS file.  This will happen a bit at a time, as we'll be unifying
license headers at the same time.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I39f52764dc377c25953ef5dba16982a0b4637cdb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35181
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Guckian
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

AUTHORS

@@ -15,9 +15,11 @@ Alexander Couzens
 Alexandru Gagniuc
 Andy Fleming
 ARM Limited and Contributors
+Arthur Heymans
 Carl-Daniel Hailfinger
 coresystems GmbH
 Damien Zammit
+Denis Dowling
 DENX Software Engineering
 Eric Biederman
 Facebook, Inc.
@@ -28,6 +30,8 @@ Google LLC
 Imagination Technologies
 Intel Corporation
 Jordan Crouse
+Joseph Smith
+Keith Hui
 Kshitij
 Kyösti Mälkki
 Lei Wen
@@ -61,6 +65,8 @@ Syed Mohammed Khasim
 Texas Instruments
 The Linux Foundation
 Timothy Pearson
+Tyan Computer Corp.
+Uwe Hermann
 Wolfgang Denk
 
 
@@ -71,3 +77,4 @@ src/arch
 src/commonlib
 src/console
 src/cpu/amd
+src/cpu/intel