LICENSES: Add licenses used in the coreboot repo

Here are example locations of these licenses:
    Apache-2.0 - src/soc/sifive
    BSD-3-Clause - Throughout coreboot & libpayload source
CC-BY-4.0 - Documentation
CC-BY-SA-3.0 - Documentation/community/code_of_conduct.md
    GPL-2.0-only - Throughout coreboot source
    GPL-2.0-or-later - Throughout coreboot source
    GPL-3.0-only - util/amdtools
    GPL-3.0-or-later - src/lib/[gcov/libgcov/gnat]
    ISC - src/lib/ubsan.c, soc/qualcomm/ipq806x/include/soc/gsbi.h, others
    MIT - soc/nvidia/tegra210/mipi_dsi.c, files in mainboard/cavium/
    X11 - include/device/drm_dp_helper.h, drivers/aspeed/common/ast_tables.h

Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: Icf20c0227d4fe8efb0d337a76935797a1bc33f0f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36388
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 324 insertions, 0 deletions

diff --git a/LICENSES/CC-BY-4.0.txt b/LICENSES/CC-BY-4.0.txt
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