feat(imx93): add OPTEE support

Add OPTEE support for imx93 platform.
Add support for the device tree overlay.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I99c7819665f8f746b0dd7941fb83dbec9d8651de
diff --git a/plat/imx/imx93/include/platform_def.h b/plat/imx/imx93/include/platform_def.h
index 70c2e68..7efbf1c 100644
--- a/plat/imx/imx93/include/platform_def.h
+++ b/plat/imx/imx93/include/platform_def.h
@@ -34,6 +34,7 @@
 /* non-secure uboot base */
 /* TODO */
 #define PLAT_NS_IMAGE_OFFSET		U(0x80200000)
+#define BL32_FDT_OVERLAY_ADDR           (PLAT_NS_IMAGE_OFFSET + 0x3000000)
 
 /* GICv4 base address */
 #define PLAT_GICD_BASE			U(0x48000000)