adding segger files

hw/mcu/nordic/nrf52/sdk/documentation/licenses.txt

@@ -0,0 +1,23 @@
+See the top of each source file for the license under which the file is 
+released.
+The following licenses are used in the nRF5 SDK:
+ 
+   i) nRF5 SDK license: The majority of the source code included in the 
+      nRF5 SDK (nRF5_Nordic_license.txt)
+
+  ii) nRF5 Dynastream license: Files released by Dynastream Innovations 
+      included in the nRF5 SDK (nRF5_Dynastream_license.txt)
+
+ iii) SoftDevice license: The SoftDevice and its headers 
+      (..\components\softdevice\sxxx\doc\<license file>)
+
+  iv) ARM 3-clause BSD license: CMSIS and system files (..\toolchain)
+
+   v) FreeRTOS license: FreeRTOS configuration files (FreeRTOSConfig.h 
+      in the examples that show how to use FreeRTOS)
+
+  vi) Third-party licenses: All third-party code contained in 
+      ..\external (respective licenses included in each of the imported
+      projects)
+ 
+ 

hw/mcu/nordic/nrf52/sdk/documentation/nRF5_Nordic_license.txt

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+Copyright (c) 2010 - 2017, Nordic Semiconductor ASA
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form, except as embedded into a Nordic
+   Semiconductor ASA integrated circuit in a product or a software update for
+   such product, must reproduce the above copyright notice, this list of
+   conditions and the following disclaimer in the documentation and/or other
+   materials provided with the distribution.
+
+3. Neither the name of Nordic Semiconductor ASA nor the names of its
+   contributors may be used to endorse or promote products derived from this
+   software without specific prior written permission.
+
+4. This software, with or without modification, must only be used with a
+   Nordic Semiconductor ASA integrated circuit.
+
+5. Any software provided in binary form under this license must not be reverse
+   engineered, decompiled, modified and/or disassembled.
+
+THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+