kea: upgrade 2.4.0 -> 2.4.1

kea: upgrade 2.4.0 -> 2.4.1

Changelog:
=========
-The library version numbers have been bumped up for the Kea 2.4.1 stable release.
-Fixed interface redetection which had stopped working since Kea 2.3.6.
-Fixed a race condition in free lease queue allocator

fix-multilib-conflict.patch
fix_pid_keactrl.patch
refreshed for 2.4.

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>