net: ieee802154: adf7242: Add support for ADF7241 devices

This adds support for ADF7241 Low Power IEEE 802.15.4
Zero-IF 2.4 GHz Transceivers
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>

Documentation/devicetree/bindings/net/ieee802154/adf7242.txt

 * ADF7242 IEEE 802.15.4 *
 
 Required properties:
-  - compatible:		should be "adi,adf7242"
+  - compatible:		should be "adi,adf7242", "adi,adf7241"
   - spi-max-frequency:	maximal bus speed (12.5 MHz)
   - reg:		the chipselect index
   - interrupts:		the interrupt generated by the device via pin IRQ1.

drivers/net/ieee802154/adf7242.c

 /*
  * Analog Devices ADF7242 Low-Power IEEE 802.15.4 Transceiver
  *
- * Copyright 2009-2015 Analog Devices Inc.
+ * Copyright 2009-2017 Analog Devices Inc.
  *
  * Licensed under the GPL-2 or later.
  *
@@ -1257,12 +1257,14 @@ static int adf7242_remove(struct spi_device *spi)
 
 static const struct of_device_id adf7242_of_match[] = {
 	{ .compatible = "adi,adf7242", },
+	{ .compatible = "adi,adf7241", },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, adf7242_of_match);
 
 static const struct spi_device_id adf7242_device_id[] = {
 	{ .name = "adf7242", },
+	{ .name = "adf7241", },
 	{ },
 };
 MODULE_DEVICE_TABLE(spi, adf7242_device_id);