enhance root password (branch yem/passwd)

Hello All!

This series allows setting analready-ecoded root pasword. See the commit log of patch 2/2 for the whole explanation.

Changes v3 -> v4:
- ditch support for DES-encoded passwords (Yann)
- use a single kconfig option to set both encoded and clear-text password (Yann)

Regards,
Yann E. MORIN.

The following changes since commit 22014e038047dfa2a303fecce0a22d1c5811b6a5:

mongoose: bump to version 5.6 (2015-03-23 23:17:32 +0100)

are available in the git repository at:

git://git.busybox.net/~ymorin/git/buildroot yem/passwd

for you to fetch changes up to a13aae8e9670b5cb069379dee94735deb3663f21:

system: allow/disallow root login, accept encoded passwords (2015-03-24 19:48:42 +0100)

----------------------------------------------------------------
Lorenzo Catucci (1):
system: allow/disallow root login, accept encoded passwords

Yann E. MORIN (1):
system: remove DES password encoding

 Config.in.legacy |  7 +++++++
 system/Config.in | 37 +++++++++++++++++++------------------
 system/system.mk | 24 ++++++++++++++++++++----
 3 files changed, 46 insertions(+), 22 deletions(-)

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