[packages] reintroduce fakeidentd (#11559)

[packages] reintroduce fakeidentd (#11559)
In the transition from WhiteRussian to Kamikaze, the fakeidentd package was dropped, citing its incorporation into the updated Busybox. However, the Busybox implementation doesn't support the -r switch, which is a bit silly,
since it's pretty much fakeidentd's raison d'etre. This patch restores the fakeidentd package, with an initscript that uses the -r option.

git-svn-id: svn://svn.openwrt.org/openwrt/packages@32566 3c298f89-4303-0410-b956-a3cf2f4a3e73