imx: imx9: Add gpio registers structure

Add GPIO registers structure for iMX93, so that we can enable lpgpio
driver

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d290194..e48054a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -916,6 +916,7 @@
 	select DM
 	select MACH_IMX
 	select SUPPORT_SPL
+	select GPIO_EXTRA_HEADER
 	select MISC
 	select IMX_SENTINEL
 	imply CMD_DM