The build of bareboximd-target tool fails on sandbox architecture:

      CC      scripts/bareboximd-target
    /tmp/ccoGPulo.o: In function `imd_concat_strings':
    scripts/../common/imd.c:216: undefined reference to `barebox_malloc'
    /tmp/ccoGPulo.o: In function `read_file_2':
    scripts/bareboximd.c:68: undefined reference to `barebox_open'
    scripts/bareboximd.c:74: undefined reference to `barebox_lseek'
    scripts/bareboximd.c:84: undefined reference to `barebox_lseek'
    scripts/bareboximd.c:90: undefined reference to `barebox_malloc'
    scripts/bareboximd.c:99: undefined reference to `barebox_read'
    scripts/bareboximd.c:119: undefined reference to `barebox_free'
    scripts/bareboximd.c:121: undefined reference to `barebox_close'
    /tmp/ccoGPulo.o: In function `imd_command':
    scripts/../common/imd.c:292: undefined reference to `barebox_printf'
    scripts/../common/imd.c:319: undefined reference to `barebox_printf'
    scripts/../common/imd.c:322: undefined reference to `barebox_free'
    scripts/../common/imd.c:324: undefined reference to `barebox_printf'
    /tmp/ccoGPulo.o: In function `usage':
    scripts/bareboximd.c:134: undefined reference to `barebox_printf'
    collect2: error: ld returned 1 exit status
    scripts/Makefile:58: recipe for target 'scripts/bareboximd-target' failed

See also

    commit d4aa015
    Author: Alexander Aring <alex.aring@gmail.com>
    Date:   Tue Nov 19 02:08:13 2013 +0100

        common: add dependency !SANDBOX on target tools

        The build of target tools fails on sandbox architecture.
        We don't need any target tools in this case, so add a dependency.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Cc: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>