ldap: make ldaplist runnable by anyone

Under /usr/local, move ldaplist from /sbin to /bin, leaving a symbolic
link for back compatibility. The reason being that most people dont have
/usr/local/sbin in their PATH.

bug: 57028
Change-Id: I5c9dc832116c6adc544c3784ea04fb216911773f
Merge "ldap: make ldaplist runnable by anyone" into production