files/group: add www-data group
files/group: add www-data group

This is the companion group for the existing www-data user, both needed
by recipes such as nostromo.

Signed-off-by: Ioan-Adrian Ratiu <7ec73abcfe099fc5574c01312b62768070c80980@ni.com>

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt