refactor(stm32mp1-fdts): add missing spaces for consistent codestyle

Change-Id: Ie650728a0c671f553679b050afd969ce604ca111
Signed-off-by: Johann Neuhauser <jneuhauser@dh-electronics.com>
diff --git a/fdts/stm32mp15xx-dkx.dtsi b/fdts/stm32mp15xx-dkx.dtsi
index 05eb46a..74e529d 100644
--- a/fdts/stm32mp15xx-dkx.dtsi
+++ b/fdts/stm32mp15xx-dkx.dtsi
@@ -33,11 +33,11 @@
 	st,digbypass;
 };
 
-&cpu0{
+&cpu0 {
 	cpu-supply = <&vddcore>;
 };
 
-&cpu1{
+&cpu1 {
 	cpu-supply = <&vddcore>;
 };