imx: imx8m: add imximage-8mp-lpddr4.cfg

Add imximage-8mp-lpddr4.cfg for imximage usage, almost same
as i.MX8MN ddr4 cfg, but with different ddr firmware

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/imx8m/imximage-8mp-lpddr4.cfg b/arch/arm/mach-imx/imx8m/imximage-8mp-lpddr4.cfg
new file mode 100644
index 0000000..586a5ff
--- /dev/null
+++ b/arch/arm/mach-imx/imx8m/imximage-8mp-lpddr4.cfg
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2019 NXP
+ */
+
+#define __ASSEMBLY__
+
+FIT
+ROM_VERSION	v2
+BOOT_FROM	sd
+LOADER		spl/u-boot-spl-ddr.bin	0x920000
+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