tests: Modify smart-properties custom query example
tests: Modify smart-properties custom query example

Change-Id: Ie5e55103d7b956534b7f88efde5c72087d37cc11
Reviewed-on: https://gpro.palm.com/43123
Reviewed-by: Jeongseok Kim <0c03ab7a1b32f29697716389c3f9549845834271@lge.com>
Tested-by: Jeongseok Kim <0c03ab7a1b32f29697716389c3f9549845834271@lge.com>

justinjoy/gst-plugins-lp,justinjoy/gst-plugins-lp