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/platform.mk b/plat/imx/imx93/platform.mk
index e6f62f8..ed7e81f 100644
--- a/plat/imx/imx93/platform.mk
+++ b/plat/imx/imx93/platform.mk
@@ -39,3 +39,8 @@
 USE_COHERENT_MEM	:=	0
 PROGRAMMABLE_RESET_ADDRESS :=	1
 COLD_BOOT_SINGLE_CPU	:=	1
+
+BL32_BASE               ?=      0x96000000
+BL32_SIZE               ?=      0x02000000
+$(eval $(call add_define,BL32_BASE))
+$(eval $(call add_define,BL32_SIZE))