* fixes autodetected dependencies
http://logs.nslu2-linux.org/buildlogs/oe/world/log.report.20160905_011801.log
chrony-2.4: chronyc rdepends on nss, but it isn't a build dependency, missing nss in DEPENDS or PACKAGECONFIG? [build-deps]
chrony-2.4: chrony rdepends on libcap, but it isn't a build dependency, missing libcap in DEPENDS or PACKAGECONFIG? [build-deps]
chrony-2.4: chrony rdepends on nss, but it isn't a build dependency, missing nss in DEPENDS or PACKAGECONFIG? [build-deps]
* also use PACKAGECONFIG_CONFARGS instead of EXTRA_OECONF in do_configure
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>