dts: wch: move ch32v00x.dtsi to ch32v0/ch32v003.dtsi

The CH32V003 belongs to the CH32V0 series. To improve code organization
and maintainability, all related files should be grouped together in a
dedicated subdirectory.

Signed-off-by: Jianxiong Gu <[email protected]>

Author: recalci

boards/wch/ch32v003evt/ch32v003evt.dts

@@ -5,7 +5,7 @@
 
 /dts-v1/;
 
-#include <wch/ch32v00x.dtsi>
+#include <wch/ch32v0/ch32v003.dtsi>
 #include "ch32v003evt-pinctrl.dtsi"
 
 / {