ARM: at91/dt: sama5d3xek: remove the useless NFC dt parameters

The NFC driver code doesn't use atmel,has-nfc and atmel,use-nfc-sram.
Signed-off-by: Josh Wu <josh.wu@atmel.com>

arch/arm/boot/dts/sama5d3xcm.dtsi

@@ -47,8 +47,6 @@ nand0: nand@60000000 {
 			atmel,has-pmecc;
 			atmel,pmecc-cap = <4>;
 			atmel,pmecc-sector-size = <512>;
-			atmel,has-nfc;
-			atmel,use-nfc-sram;
 			nand-on-flash-bbt;
 			status = "okay";