Fix doxm confirm logic.
Fix doxm confirm logic.

When doxm change owner callback called when post
devowneruuid, it will call more than once.(even storage load
will call this callback) So I changed this to reduce from
storage load and actual devowner is changed with before.

Change-Id: I76185619fca8fadfe1bb3ab3250076c4b9bd5b49
Signed-off-by: Jaehyun Cho <28489b2a5d4d866f0b2c5b336308eed1088d78b6@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/25689
Tested-by: IoTivity Jenkins <6267f6022d49a8a37a7fe97da24aebfab797522c@iotivity.org>
Reviewed-by: Aleksey Volkov <a27d9cdf263d3bb0a7e1b2122425c0a535a3f64c@samsung.com>
Reviewed-by: Uze Choi <3a26c91d8a4a3c9e246e43339f4782bb2483aece@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/27663
Reviewed-by: Kishen Maloor <c62ddea3cd661a9268bff15f07fc2229cdc9ac02@intel.com>
Tested-by: Kishen Maloor <c62ddea3cd661a9268bff15f07fc2229cdc9ac02@intel.com>

iotivity/iotivity-constrained,iotivity/iotivity-constrained,iotivity/iotivity-constrained,iotivity/iotivity-constrained