Add missing concentrator boards.

Author: brocaar

README.md

@@ -40,6 +40,7 @@ Provides the following features:
 
 * Raspberry Pi 3
     * [IMST - iC880A](https://wireless-solutions.de/products/long-range-radio/ic880a.html)
+    * [IMST - iC980A](http://www.imst.com/)
     * [RAK - RAK2245](https://www.rakwireless.com/en/)
     * [RAK - RAK831 Gateway Developer Kit](https://www.rakwireless.com/en/WisKeyOSH/RAK831)
 	* [RisingHF - RHF0M301 LoRaWAN IoT Discovery Kit](http://risinghf.com/#/product-details?product_id=9&lang=en)

docs/content/overview/_index.md

@@ -35,6 +35,8 @@ by the **lora-gateway-os-base** image.
 
 * Raspberry Pi 3
     * [IMST - iC880A](https://wireless-solutions.de/products/long-range-radio/ic880a.html)
+    * [IMST - iC980A](http://www.imst.com/)
+    * [RAK - RAK2245](https://www.rakwireless.com/en/)
     * [RAK - RAK831 Gateway Developer Kit](https://www.rakwireless.com/en/WisKeyOSH/RAK831)
 	* [RisingHF - RHF0M301 LoRaWAN IoT Discovery Kit](http://risinghf.com/#/product-details?product_id=9&lang=en)
     * [Sandbox Electronics - LoRaGo PORT](https://sandboxelectronics.com/?product=lorago-port-multi-channel-lorawan-gateway)

docs/content/overview/changelog.md

@@ -18,7 +18,7 @@ menu:
 ### Raspberry Pi
 
 * Change SPI speed to 2MHz (required by RAK2245)
-* Add IMST980A configuration
+* Add IMST iC980A configuration
 * Add RAK2245 configuration
 
 ### LORIX One 512MB