phycore-imx8mp_defconfig: add optee load address

The phyBOARD-Pollux expects 0x56000000 address to load optee.

Signed-off-by: Yannic Moog <y.moog@phytec.de>
diff --git a/configs/phycore-imx8mp_defconfig b/configs/phycore-imx8mp_defconfig
index 2398182..ba716a6 100644
--- a/configs/phycore-imx8mp_defconfig
+++ b/configs/phycore-imx8mp_defconfig
@@ -5,6 +5,7 @@
 CONFIG_SPL_GPIO=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_IMX8M_OPTEE_LOAD_ADDR=0x56000000
 CONFIG_PHYTEC_SOM_DETECTION=y
 CONFIG_SF_DEFAULT_SPEED=80000000
 CONFIG_ENV_SIZE=0x10000