verdin-imx8mm: switch to use binman to pack images

Use binman to pack images.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Heiko Thiery <heiko.thiery@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/board/toradex/verdin-imx8mm/imximage.cfg b/board/toradex/verdin-imx8mm/imximage.cfg
index b8b25ff..fcc9200 100644
--- a/board/toradex/verdin-imx8mm/imximage.cfg
+++ b/board/toradex/verdin-imx8mm/imximage.cfg
@@ -1,16 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- * Copyright 2020 Toradex
+ * Copyright 2020-2021 Toradex
  */
 
 #define __ASSEMBLY__
 
-FIT
 BOOT_FROM	emmc_fastboot
-LOADER		spl/u-boot-spl-ddr.bin	0x7E1000
-SECOND_LOADER	u-boot.itb		0x40200000 0x60000
-
-DDR_FW lpddr4_pmu_train_1d_imem.bin
-DDR_FW lpddr4_pmu_train_1d_dmem.bin
-DDR_FW lpddr4_pmu_train_2d_imem.bin
-DDR_FW lpddr4_pmu_train_2d_dmem.bin
+LOADER		u-boot-spl-ddr.bin	0x7e1000