ARM: at91/trivial: typos in compatible property

- unneeded whitespace
- missing double quote

Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable <stable@vger.kernel.org> # 3.8+
diff --git a/arch/arm/boot/dts/at91sam9x35.dtsi b/arch/arm/boot/dts/at91sam9x35.dtsi
index fb102d6..ba67d83 100644
--- a/arch/arm/boot/dts/at91sam9x35.dtsi
+++ b/arch/arm/boot/dts/at91sam9x35.dtsi
@@ -10,7 +10,7 @@
 
 / {
 	model = "Atmel AT91SAM9X35 SoC";
-	compatible = "atmel, at91sam9x35, atmel,at91sam9x5";
+	compatible = "atmel,at91sam9x35", "atmel,at91sam9x5";
 
 	ahb {
 		apb {