Modify the "legacy bus" to pass all resource allocations through to its parent rather than track resources locally.  The original code was incomplete in that it would only honor requests for resources that already exist in its resource list.  This prevented many ISA identify routines from allocating temporary resources.  Passing the requests up to legacy's parent losing no functionality and allows these requests to succeed.
Modify the "legacy bus" to pass all resource allocations through to its
parent rather than track resources locally.  The original code
was incomplete in that it would only honor requests for resources
that already exist in its resource list.  This prevented many ISA
identify routines from allocating temporary resources.  Passing
the requests up to legacy's parent losing no functionality and
allows these requests to succeed.

Reviewed by: imp, jhb
Approved by: RE

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