refactor(stm32mp15-fdts): remove ETZPC status

The ETZPC is always secure, and the driver does no more rely on
secure-status (and status) DT property. Remove them from the SoC
DT file.

Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I5f1d3534679553d79e6866396cd70e21a595ef6a
diff --git a/fdts/stm32mp151.dtsi b/fdts/stm32mp151.dtsi
index 575d61e..bb16fda 100644
--- a/fdts/stm32mp151.dtsi
+++ b/fdts/stm32mp151.dtsi
@@ -497,8 +497,6 @@
 			compatible = "st,stm32-etzpc";
 			reg = <0x5C007000 0x400>;
 			clocks = <&rcc TZPC>;
-			status = "disabled";
-			secure-status = "okay";
 		};
 
 		stgen: stgen@5c008000 {