imx: imx8mm-icore: migrate to use BINMAN

Use BINMAN instead of imx specific packing method.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index 09b9d56..979b30a 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -69,6 +69,7 @@
 
 config TARGET_IMX8MM_ICORE_MX8MM
 	bool "Engicam i.Core MX8M Mini SOM"
+	select BINMAN
 	select IMX8MM
 	select SUPPORT_SPL
 	select IMX8M_LPDDR4
diff --git a/arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg b/arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg
index e06d53e..5dcb8ae 100644
--- a/arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg
+++ b/arch/arm/mach-imx/imx8m/imximage-8mm-lpddr4.cfg
@@ -3,13 +3,5 @@
  * Copyright 2019 NXP
  */
 
-
-FIT
 BOOT_FROM	sd
-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