Don't hold up the boot while the cache is being updated.
(From OE-Core rev: eb52b257511b7624c8e212f5e9df711935d619ee)
Signed-off-by: Richard Tollerton <rich.tollerton@ni.com>
Signed-off-by: Ben Shelton <ben.shelton@ni.com>
Acked-by: Gratian Crisan <gratian.crisan@ni.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>