[IOT-1577] Copy Static library files(*.a) into rpm file

[IOT-1577] Copy Static library files(*.a) into rpm file

- copy all builded static library to iotivity-devel-1.2.0-0.armv7l.rpm

Change-Id: I9147c1cbeeb0d53cbee0ac215012d9d57571c06c
Signed-off-by: YounghyunJoo <yh_.joo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/14505
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Phil Coval <philippe.coval@osg.samsung.com>
Reviewed-by: JunHo Lee <junho13.lee@samsung.com>
Reviewed-by: Mats Wichmann <mats@linux.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>