ARM: dts: at91: sam9rl: Properly assign copyright

The copyright holder for this work is Microchip (formerly Atmel)
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

arch/arm/boot/dts/at91sam9rl.dtsi

 /*
  * at91sam9rl.dtsi - Device Tree Include file for AT91SAM9RL family SoC
  *
- *  Copyright (C) 2014 Alexandre Belloni <alexandre.belloni@free-electrons.com>
+ *  Copyright (C) 2014 Microchip
+ *  Alexandre Belloni <alexandre.belloni@free-electrons.com>
  *
  * Licensed under GPLv2 or later.
  */

arch/arm/boot/dts/at91sam9rlek.dts

 /*
  * at91sam9rlek.dts - Device Tree file for Atmel at91sam9rl reference board
  *
- *  Copyright (C) 2014  Alexandre Belloni <alexandre.belloni@free-electrons.com>
+ *  Copyright (C) 2014 Microchip
+ *  Alexandre Belloni <alexandre.belloni@free-electrons.com>
  *
  * Licensed under GPLv2 only
  */