Mount /var/volatile ourselves so that we can set up the writable area
first. This fixes the urandom service not starting properly when
read-only-rootfs is enabled.
(From OE-Core rev: 44c7d8a27a84a04251408e9a7d9550629bc17704)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>