We anticipate signatures being shared amongst peers in a group so ensure
they have rw-rw-r-- permissions to facilitate this.
(Bitbake rev: e4716f316152cafabebcefec7b387edeb02ad3eb)
Signed-off-by: Joshua Lock <josh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>