soc: gd32e1 change pinctrl dtsi location

move gd32e1 pinctrl file from gd32e1 module to zephyr repo.

Signed-off-by: YuLong Yao <[email protected]>

Author: feilongfl

boards/arm/gd32e103v_eval/gd32e103v_eval.dts

@@ -8,7 +8,7 @@
 /dts-v1/;
 
 #include <gigadevice/e1/gd32e103Xb.dtsi>
-#include <gd/e1/gd32e103v(8-b)tx-pinctrl.dtsi>
+#include <gigadevice/e1/gd32e103v(8-b)tx-pinctrl.dtsi>
 
 / {
 	model = "GigaDevice GD32E103VB-EVAL board";