ARM: tegra: Remove spurious comma from node name

This was probably left there by mistake or perhaps was a typo in the
first place. Remove it.

Cc: Marcel Ziswiler <[e-mail]>
Cc: Philippe Schenker <[e-mail]>
Signed-off-by: Thierry Reding <[e-mail]>

arch/arm/boot/dts/tegra30-colibri.dtsi

···
 			};
 
 			/* Colibri USBH_OC */
-			spi2-cs2-n-pw3, {
+			spi2-cs2-n-pw3 {
 				nvidia,pins = "spi2_cs2_n_pw3";
 				nvidia,function = "spi2_alt";
 				nvidia,pull = <TEGRA_PIN_PULL_NONE>;