imx7ulp: synchronise device tree with linux

Synchronise device tree with linux v6.0-rc1.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
diff --git a/arch/arm/dts/imx7ulp-com-u-boot.dtsi b/arch/arm/dts/imx7ulp-com-u-boot.dtsi
index d73bfbf..b766c5e 100644
--- a/arch/arm/dts/imx7ulp-com-u-boot.dtsi
+++ b/arch/arm/dts/imx7ulp-com-u-boot.dtsi
@@ -32,6 +32,6 @@
 	u-boot,dm-spl;
 };
 
-&gpio0 {
+&gpio_ptc {
 	u-boot,dm-spl;
 };