stm32mp1: add some syscon drivers for syscfg and etpzc

Add SYSCON driver for syscfg and etpzc and reorder in alphabetics order

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/arch/arm/dts/stm32mp157c.dtsi b/arch/arm/dts/stm32mp157c.dtsi
index 37cadfa..d1d0f90 100644
--- a/arch/arm/dts/stm32mp157c.dtsi
+++ b/arch/arm/dts/stm32mp157c.dtsi
@@ -754,7 +754,7 @@
 		};
 
 		syscfg: system-config@50020000 {
-			compatible = "st,stm32-syscfg", "syscon";
+			compatible = "st,stm32mp157-syscfg", "syscon";
 			reg = <0x50020000 0x400>;
 		};