Fix race condition in binding isolated services in shared process.

When a new isolated service is being bound in a shared isolated process
that is not yet completely brought up, the service is added to the
pending services list. However, when the shared isolated process does
come up, the pending service is not considered, because the UID does not
match. Set isolationHostProc correctly in the ServiceRecord, to ensure
that the pending service logic knows to put this service in the shared
isolated process.

Bug: 280918250
Test: atest CtsVoiceInteractionTestCases
Change-Id: Iaf0bcdec2c777e72a0e18246fa0e5ccca117def1