bsp: tf-a: fix path to the combo image

Fix the path to the combo (tfa+fip) image ('s/arm-trusted-firmware/fip/g').

Fixes: 5413f74 ("bsp: tf-a-fio-st: create combo images for eval board")
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
(cherry picked from commit d6b9d3f)
Signed-off-by: Jose Quaresma <jose.quaresma@foundries.io>

meta-lmp-bsp/recipes-bsp/trusted-firmware-a/tf-a-fio-st.inc

@@ -76,7 +76,7 @@ create_combo_image() {
             cp ${DEPLOYDIR}/arm-trusted-firmware/tf-a-${LMP_FLASHLAYOUT_BOARD_NAME}-emmc.stm32 \
                ${DEPLOYDIR}/fip/combo-emmc-tfa-fip-${LMP_FLASHLAYOUT_BOARD_NAME}.bin
             dd if=${DEPLOYDIR}/fip/fip-${LMP_FLASHLAYOUT_BOARD_NAME}-optee.bin \
-               of=${DEPLOYDIR}/arm-trusted-firmware/combo-emmc-tfa-fip-${LMP_FLASHLAYOUT_BOARD_NAME}.bin bs=1024 seek=256 conv=notrunc
+               of=${DEPLOYDIR}/fip/combo-emmc-tfa-fip-${LMP_FLASHLAYOUT_BOARD_NAME}.bin bs=1024 seek=256 conv=notrunc
         fi
     fi
 }