imx8m_som.h : update the mmc load commands

include/configs/imx8m_som.h

@@ -8,6 +8,8 @@
 #ifndef __IMX8M_SOM_H
 #define __IMX8M_SOM_H
 
+/* #define DEBUG */
+
 #include <linux/sizes.h>
 #include <asm/arch/imx-regs.h>
 
@@ -156,7 +158,7 @@
 	CONFIG_MFG_ENV_SETTINGS \
 	"script=boot.scr\0" \
 	"image=Image\0" \
-	"fdt_file=Image-imx8m-som.dtb\0" \
+	"fdt_file=dtbs/librem5-evk.dtb\0" \
 	"ethaddr=3C:FB:96:77:88:A0\0" \
 	"ip_dyn=no\0" \
 	"ipaddr=172.17.33.41\0" \
@@ -178,11 +180,11 @@
 	"netargs=setenv bootargs ${bootargs} " \
                 "root=/dev/nfs nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
 	"mmcargs=setenv bootargs ${bootargs} root=${mmcroot}\0 " \
-	"loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
+	"loadbootscript=ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
 	"bootscript=echo Running bootscript from mmc ...; " \
 		"source\0" \
-	"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
-	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
+	"loadimage=ext2load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
+	"loadfdt=ext2load mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
 	"rtos_file=imx8mq_m4_TCM_rpmsg_lite_str_echo_rtos.bin\0"       \
 	"rtos_bootaddr=0x7e0000\0"				       \
 	"rtosmmcboot=fatload mmc ${mmcdev}:${mmcpart} ${rtos_bootaddr} "  \