replace custom fw_savenev script with mkenvimage

Signed-off-by: Michel Stempin <michel.stempin@wanadoo.fr>

FunKey/board/funkey/rootfs-overlay/usr/local/sbin/fw_saveenv

@@ -1,57 +0,0 @@
-#!/bin/sh
-
-# Uncomment the following line to get debug info
-#set -xv
-
-source /usr/local/lib/utils
-
-fw_saveenv () {
-
-    # Check arguments
-    if [ $# -ne 1 ]; then
-	die 1 "usage: fw_saveenv filename"
-    fi
-
-    # Save the input file name
-    local input_file="${1}"
-
-    # Read the fw_env config file
-    local config=$(sed -e 's/#.*$//' -e '/^$/d' /etc/fw_env.config)
-    set ${config}
-    local of=${1}
-    local seek=$((${2} / 1024))
-    local count=$((${3} / 1024))
-
-    # Create 2 temporary files
-    local blob_file=$(mktemp /tmp/fw_saveenv.XXXXXX)
-    local env_file=$(mktemp /tmp/fw_saveenv.XXXXXX)
-
-    # Convert the provided file to a null-terminated string blob
-    cat "${input_file}" | tr '\n' '\0' > ${blob_file}
-
-    # Compute the blob length in bytes
-    set -- $(ls -l ${blob_file})
-    local length=${5}
-
-    # Compute the padding size in bytes
-    let padding=${count}*1024-4-${length}
-
-    # Pad the blob file with zeros up to the total size
-    dd if=/dev/zero bs=1 count=${padding} >>${blob_file} 2>/dev/null
-
-    # Compute the CRC32 for the padded blob and store it at the beginning of the env file
-    set $(cat ${blob_file} | gzip -1 | tail -c 8 | head -c 4 | hexdump -e '4/1 "%02X "')
-    printf "\\x$1\\x$2\\x$3\\x$4" > ${env_file}
-
-    # Append the binary blob file to the env file
-    cat ${blob_file} >> ${env_file}
-
-    # Write the final env file to the raw device
-    dd if=${env_file} of=${of} bs=1k count=${count} seek=${seek} 2>/dev/null
-
-    # Remove the temporay files
-    rm ${blob_file} ${env_file}
-    return 0
-}
-
-fw_saveenv $*

FunKey/configs/funkey_defconfig

@@ -64,6 +64,7 @@ BR2_PACKAGE_GPTFDISK_SGDISK=y
 BR2_PACKAGE_PARTED=y
 BR2_PACKAGE_SYSSTAT=y
 BR2_PACKAGE_UBOOT_TOOLS=y
+BR2_PACKAGE_UBOOT_TOOLS_MKENVIMAGE=y
 BR2_PACKAGE_LIBQRENCODE=y
 BR2_PACKAGE_LIBQRENCODE_TOOLS=y
 BR2_PACKAGE_LIBNL=y