AUTHORS: Move src/drivers/[a*-i*] 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.

Updated Authors file is in a separate commit.

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I1acea8c975d14904b7e486dc57a1a67480a6ee6e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36178
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/drivers/i2c/tpm/cr50.c b/src/drivers/i2c/tpm/cr50.c
index 19c8f6b..3c70b7e 100644
--- a/src/drivers/i2c/tpm/cr50.c
+++ b/src/drivers/i2c/tpm/cr50.c
@@ -1,9 +1,5 @@
 /*
- * Copyright 2016 Google Inc.
- *
- * Based on Linux Kernel TPM driver by
- * Peter Huewe <peter.huewe@infineon.com>
- * Copyright (C) 2011 Infineon Technologies
+ * This file is part of the coreboot project.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -16,6 +12,8 @@
  * GNU General Public License for more details.
  */
 
+/* Based on Linux Kernel TPM driver */
+
 /*
  * cr50 is a TPM 2.0 capable device that requries special
  * handling for the I2C interface.