feat(stm32mp1-fdts): change pin-controller to pinctrl

Due to commit updating kernel yaml file [1], we need to align TF-A DT
files to what is done in kernel.

[1] c09acbc499e8 ("dt-bindings: pinctrl: use pinctrl.yaml")

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: Id717162e42d3959339d6c01883e87a9d4399f5d9
diff --git a/fdts/stm32mp13-bl2.dtsi b/fdts/stm32mp13-bl2.dtsi
index 41d6e2e..00bf1b5 100644
--- a/fdts/stm32mp13-bl2.dtsi
+++ b/fdts/stm32mp13-bl2.dtsi
@@ -101,7 +101,7 @@
 		/delete-node/ tamp@5c00a000;
 		/delete-node/ stgen@5c008000;
 
-		pin-controller@50002000 {
+		pinctrl@50002000 {
 #if !STM32MP_EMMC && !STM32MP_SDMMC
 			/delete-node/ sdmmc1-b4-0;
 			/delete-node/ sdmmc2-b4-0;