coap: fix override syntax

• convert to kirkstone override syntax
• restrict example package to include only examples directory

Signed-off-by: Francesco Pham francesco.pham@huawei.com

approved this merge request

added 3 commits

• 9bfa3c15...ab7d94c9 - 2 commits from branch eclipse/oniro-core:kirkstone
• ce7c7a87 - coap: fix override syntax

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assigned to @agherzan

requested review from @agherzan and @idlethread

approved this merge request

merged