zio_compress_data: limit dest length to ABD size

Some callers (eg `do_corrective_recv()`) pass in a dest buffer much
smaller than the wanted 87.5% of the source buffer, because the
incoming abd is larger than the source data and they "know" what the
decompressed size with be.

However, `abd_borrow_buf()` rightly asserts if we try to borrow more
than is available, so these callers fail.

Previously when all we had was a dest buffer, we didn't know how big it
was, so we couldn't do anything. Now we have a dest abd, with a size, so
we can clamp dest size to the abd size.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Signed-off-by: Rob Norris <[email protected]>

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