doc: include license for src/large_pages in LICENSE

Include License for src/large_pages (MIT licensed by Intel), to the main
LICENSE file and make required changes to the tools/license-builder.sh
script.

Fixes: nodejs#25238

PR-URL: nodejs#25246
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

LICENSE

@@ -1325,3 +1325,26 @@ The externally maintained libraries used by Node.js are:
     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     IN THE SOFTWARE.
   """
+
+- large_pages, located at src/large_pages, is licensed as follows:
+  """
+     Copyright (C) 2018 Intel Corporation
+
+     Permission is hereby granted, free of charge, to any person obtaining a copy
+     of this software and associated documentation files (the "Software"),
+     to deal in the Software without restriction, including without limitation
+     the rights to use, copy, modify, merge, publish, distribute, sublicense,
+     and/or sell copies of the Software, and to permit persons to whom
+     the Software is furnished to do so, subject to the following conditions:
+
+     The above copyright notice and this permission notice shall be included
+     in all copies or substantial portions of the Software.
+
+     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+     OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+     THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
+     OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+     ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
+     OR OTHER DEALINGS IN THE SOFTWARE.
+  """

tools/license-builder.sh

@@ -89,4 +89,7 @@ addlicense "nghttp2" "deps/nghttp2" "$(cat ${rootdir}/deps/nghttp2/COPYING)"
 # node-inspect
 addlicense "node-inspect" "deps/node-inspect" "$(cat ${rootdir}/deps/node-inspect/LICENSE)"
 
+# large_pages
+addlicense "large_pages" "src/large_pages" "$(sed -e '/SPDX-License-Identifier/,$d' -e 's/^\/\///' ${rootdir}/src/large_pages/node_large_page.h)"
+
 mv $tmplicense $licensefile