[armhf][sonic-installer] Fix the sonic-installer install images on armhf platform issue (sonic-net#12284)

Signed-off-by: mlok <[email protected]>

Signed-off-by: mlok <[email protected]>

Author: mlok-nokia

platform/marvell-armhf/platform.conf

@@ -165,11 +165,11 @@ prepare_boot_menu() {
         fw_setenv ${FW_ARG} mtdparts 'mtdparts=spi0.0:4m(boot),-(spi-rootfs)' > /dev/null
     fi
     fw_setenv ${FW_ARG} ubi_sonic_boot_mount_ubi 'ubi part SONIC; ubifsmount ubi0' > /dev/null
-    fw_setenv ${FW_ARG} ubi_sonic_boot_bootargs $BOOTARGS > /dev/null
-    fw_setenv ${FW_ARG} ubi_sonic_boot_load $UBI_LOAD > /dev/null
+    fw_setenv ${FW_ARG} ubi_sonic_boot_bootargs "$BOOTARGS" > /dev/null
+    fw_setenv ${FW_ARG} ubi_sonic_boot_load "$UBI_LOAD" > /dev/null
     fw_setenv ${FW_ARG} sonic_image_1 "$UBIBOOTCMD" > /dev/null
-    fw_setenv ${FW_ARG} ubi_sonic_boot_bootargs_old $BOOTARGS_OLD > /dev/null
-    fw_setenv ${FW_ARG} ubi_sonic_boot_load_old $UBI_LOAD_OLD > /dev/null
+    fw_setenv ${FW_ARG} ubi_sonic_boot_bootargs_old "$BOOTARGS_OLD" > /dev/null
+    fw_setenv ${FW_ARG} ubi_sonic_boot_load_old "$UBI_LOAD_OLD" > /dev/null
     fw_setenv ${FW_ARG} sonic_image_2 "$UBIBOOTCMD_OLD" > /dev/null
     fw_setenv ${FW_ARG} boot_next  'run sonic_image_1'> /dev/null
     fw_setenv ${FW_ARG} bootcmd 'run print_menu; usb start; test -n "$boot_once" && run boot_once; run boot_next' > /dev/null