sdbusplus: object: don't use 'bool' argument constructor

`sdbusplus::server::object_t` has long had an enum-based parameter for
signal action, but maintained a backwards compatible boolean mapping.
It is time to remove this boolean to make it more observable which
actions are being used in applications.  Map all `true` occurrences to
`action::defer_emit`.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ia42c547e5f4e7644315dad6f7b13476cd8db4826
1 file changed