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/mach-stm32mp/syscon.c b/arch/arm/mach-stm32mp/syscon.c
index eb7f435..242f834 100644
--- a/arch/arm/mach-stm32mp/syscon.c
+++ b/arch/arm/mach-stm32mp/syscon.c
@@ -9,10 +9,11 @@
 #include <asm/arch/stm32.h>
 
 static const struct udevice_id stm32mp_syscon_ids[] = {
-	{ .compatible = "st,stm32-stgen",
-	  .data = STM32MP_SYSCON_STGEN },
-	{ .compatible = "st,stm32mp1-pwr",
-	  .data = STM32MP_SYSCON_PWR },
+	{ .compatible = "st,stm32mp1-etzpc", .data = STM32MP_SYSCON_ETZPC },
+	{ .compatible = "st,stm32mp1-pwr", .data = STM32MP_SYSCON_PWR },
+	{ .compatible = "st,stm32-stgen", .data = STM32MP_SYSCON_STGEN },
+	{ .compatible = "st,stm32mp157-syscfg",
+	  .data = STM32MP_SYSCON_SYSCFG },
 	{ }
 };