Insert extlinux.conf and zImage in post image script

board/raspberrypi/extlinux.conf

@@ -0,0 +1,4 @@
+label buildroot
+	kernel /zImage
+	devicetree /bcm2708-rpi-b-plus.dtb
+	append root=/dev/mmcblk0p2 rootwait console=tty1 console=ttyAMA0,115200

board/raspberrypi/post-image.sh

@@ -7,6 +7,10 @@ BOARD_NAME="$(basename ${BOARD_DIR})"
 GENIMAGE_CFG="${BOARD_DIR}/genimage-${BOARD_NAME}.cfg"
 GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
 
+# Prepare extlinux directory in BINARIES_DIR
+mkdir -p "${BINARIES_DIR}/extlinux"
+cp "${BOARD_DIR}/extlinux.conf" "${BINARIES_DIR}/extlinux/extlinux.conf"
+
 # generate genimage from template if a board specific variant doesn't exists
 if [ ! -e "${GENIMAGE_CFG}" ]; then
 	GENIMAGE_CFG="${BINARIES_DIR}/genimage.cfg"
@@ -16,8 +20,9 @@ if [ ! -e "${GENIMAGE_CFG}" ]; then
 		FILES+=( "${i#${BINARIES_DIR}/}" )
 	done
 
-	KERNEL=$(sed -n 's/^kernel=//p' "${BINARIES_DIR}/rpi-firmware/config.txt")
-	FILES+=( "${KERNEL}" )
+	FILES+=( "u-boot.bin" )
+	FILES+=( "zImage" )
+	FILES+=( "extlinux/" )
 
 	BOOT_FILES=$(printf '\\t\\t\\t"%s",\\n' "${FILES[@]}")
 	sed "s|#BOOT_FILES#|${BOOT_FILES}|" "${BOARD_DIR}/genimage.cfg.in" \
@@ -41,4 +46,4 @@ genimage \
 	--outputpath "${BINARIES_DIR}" \
 	--config "${GENIMAGE_CFG}"
 
-exit $?
+exit $?