qa: test-erasure-eio.sh honors the EC partial read support

qa: test-erasure-eio.sh honors the EC partial read support

This is supposed to fix:

```
2024-05-15T01:19:55.945 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:243: rados_get_data_bad_size:  rados_get td/test-erasure-
eio pool-jerasure obj-size-81362-1-10 fail
2024-05-15T01:19:55.946 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:104: rados_get:  local dir=td/test-erasure-eio
2024-05-15T01:19:55.946 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:105: rados_get:  local poolname=pool-jerasure
2024-05-15T01:19:55.946 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:106: rados_get:  local objname=obj-size-81362-1-10
2024-05-15T01:19:55.946 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:107: rados_get:  local expect=fail
2024-05-15T01:19:55.946 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:112: rados_get:  '[' fail = fail ']'
2024-05-15T01:19:55.946 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:114: rados_get:  rados --pool pool-jerasure get obj-size-
81362-1-10 td/test-erasure-eio/COPY
2024-05-15T01:19:56.175 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:115: rados_get:  return
2024-05-15T01:19:56.175 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:243: rados_get_data_bad_size:  return 1
2024-05-15T01:19:56.175 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:323: TEST_rados_get_bad_size_shard_1:  return 1
2024-05-15T01:19:56.175 INFO:tasks.workunit.client.0.smithi190.stderr:/home/ubuntu/cephtest/clone.client.0/qa/standalone/erasure-code/test-erasure-eio.sh:41: run:  return 1
```

(https://pulpito.ceph.com/rzarzynski-2024-05-14_22:09:16-rados-wip-osd-ec-partial-reads-distro-default-smithi/7706517/)

The failed scenario was exercising a behavior that got truly
changed by introduction of partial reads. Before, regardless
of read size, OSD was always reading and checking for errors
entire stripe.

In this test first 4 KB has been read from an EC pool with
m=2 k=1 while errors had been injected to shards 1 and 2.
Handling the first 4 KB doesn't really require the damaged
shards but, because of the full-stripe alignment, EIO was
returned. This is not anymore.

Signed-off-by: Radosław Zarzyński <rzarzyns@redhat.com>