scripts: genpinctrl: update scripts for u3 support

Modification to support -pinctrl.dtsi files
generation for stm32u3 socs

Signed-off-by: Khaoula Bidani <[email protected]>

Author: kbidani

scripts/genpinctrl/genpinctrl.py

@@ -68,6 +68,7 @@
     "stm32mp1": 0x50002000,
     "stm32n6": 0x56020000,
     "stm32u0": 0x50000000,
+    "stm32u3": 0x42020000,
     "stm32u5": 0x42020000,
     "stm32wba": 0x42020000,
     "stm32wb": 0x48000000,