StdLibPrivateInternalFiles: Replace BSD License with BSD+Patent License

https://bugzilla.tianocore.org/show_bug.cgi?id=1373

Replace BSD 2-Clause License with BSD+Patent License.  This change is
based on the following emails:

  https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
  https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html

RFCs with detailed process for the license change:

  https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html
  https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html

Branch for review:

  https://github.com/mdkinney/edk2/tree/Bug_1373_BsdPatentLicense

Cc: Daryl McDaniel <[email protected]>
Cc: Jaben Carsey <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <[email protected]>

Author: mdkinney

StdLibPrivateInternalFiles/DoNotUse.dec

@@ -2,13 +2,7 @@
 #
 # Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
 #
-# This program and the accompanying materials are licensed and made available under
-# the terms and conditions of the BSD License which accompanies this distribution.
-# The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.
-#
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
 ##