[Stream] Fold transferred stream clones into minimal slices before loads (#24740)

This PR Extends clone folding for `stream.async.load` and
`stream.tensor.load` to
handle the staging transfer introduced before loads.

Both stream.async.load and stream.tensor.load require their source to be
a staging resource, while stream.async.clone and stream.tensor.clone
always produce non-staging resources. As a result, loads from cloned
resources are always preceded by a stream.async.transfer.

This change matches the pattern:
`
  clone -> transfer -> load
`

and rewrites it to:
`
  slice -> transfer -> load
`

by creating a minimal slice of the original source, transferring only
that slice to staging, and loading from it. This avoids cloning and
transferring the entire resource when only a single value is accessed,
while preserving the required staging semantics.

---------

Signed-off-by: LekkalaSravya3 <lekkala.sravya@multicorewareinc.com>