Skip duplicate parameters when IkeTunnelConnectionParams provided

For those fields existing in the IkeTunnelConnectionParams,
the value should be retrieved from the object to honor the
setting in the object. IkeTunnelConnectionParams are serialized
in a safe manner to ensure that they do not conflict with the
serialization scheme of VpnProfile. However, copying some of
these fields(e.g. IkeKeyId) may conflict with the serialization
scheme.

Bug: 243718982
Test: atest FrameworksNetTests CtsNetTestCases
Change-Id: I510c47e26feabd5cebe9497ef495e4d729d0f7c6