Set unused OCDeviceInfo struct fields to NULL
Set unused OCDeviceInfo struct fields to NULL

Java DeviceInfo never uses the optional OCDeviceInfo fields,
these must be set to NULL to avoid potential corrupt data.

Change-Id: I7eda3be60d17591ab6169c0d487784c474f6325d
Signed-off-by: ljsachs <87b901be7a441bcf97cbe259c532df419aac788e@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/10165
Reviewed-by: Dave Thaler <8a98d0850f57b73c42d096f8f8b11e2d5522d554@microsoft.com>
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: Uze Choi <3a26c91d8a4a3c9e246e43339f4782bb2483aece@samsung.com>
Tested-by: Uze Choi <3a26c91d8a4a3c9e246e43339f4782bb2483aece@samsung.com>

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