urandom: move seed from /var/run to /var/lib

We want the seed to be preserved across reboots, so move it to /var/lib.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

conf.d/urandom

@@ -2,4 +2,4 @@
 # (say for crypt swap), so you will need to customize this
 # behavior.  If you have /var on a separate partition, then
 # make sure this path lives on your root device somewhere.
-urandom_seed="/var/run/random-seed"
+urandom_seed="/var/lib/misc/random-seed"