glibc/nscd: do not cache for netgroup by default
We don't have /etc/netgroup by default, so do not
cache for netgroup by default to avoid:
nscd[529]: 529 disabled inotify-based monitoring for file `/etc/netgroup': No such file or directory
nscd[529]: 529 stat failed for file `/etc/netgroup'; will try again later: No such file or directory
(From OE-Core rev:
10007bcd30a96470059f9d5b19cf698243486f06)
Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
