doc/cephadm: s/ssh/SSH/ in doc/cephadm (complete)

This PR alters "ssh" to "SSH" in the text (that is, not in
commands) every location in the doc/cephadm/ directory where
"ssh" should be "SSH".

Signed-off-by: Zac Dover <zac.dover@gmail.com>
(cherry picked from commit 5c217c1de57ddcdda19bd83993a26d2f257a03b7)

Merge pull request #48606 from zdover23/wip-doc-2022-10-24-backport-48605-to-quincy

quincy: doc/cephadm: improve front matter

Reviewed-by: Anthony D'Atri <anthony.datri@gmail.com>

Merge pull request #48603 from zdover23/wip-doc-2022-10-24-backport-48600-to-quincy

quincy: doc/cephadm: clean colons in host-management.rst

Reviewed-by: Cole Mitchell <cole.mitchell@gmail.com>
Reviewed-by: Anthony D'Atri <anthony.datri@gmail.com>

Merge pull request #48601 from zdover23/wip-doc-2022-10-24-backport-48599-to-quincy

quincy: doc/cephadm: s/ssh/SSH/ in troubleshooting.rst

Reviewed-by: Cole Mitchell <cole.mitchell@gmail.com>
Reviewed-by: Anthony D'Atri <anthony.datri@gmail.com>

doc/cephadm: improve front matter

- I fixed a sentence that was missing a verb.
- I linked to the Ceph-specific Rook instructions.
- I removed the word "GitHub", because after adding the
  Rook instructions it made the sentence false.

Signed-off-by: Zac Dover <zac.dover@gmail.com>
(cherry picked from commit 608b1bdd42f1da75b43584fa45586575ccef0290)

doc/cephadm: clean colons in host-management.rst

Two lines in host-management.rst ended with both colons and
full stops (periods), causing a kind of punctuational turf
war. This commit removes the full stops.

Signed-off-by: Zac Dover <zac.dover@gmail.com>
(cherry picked from commit 495182b84e86babdba38c184d489f118e8881e2c)

doc/cephadm: s/ssh/SSH/ in troubleshooting.rst

Two places in the troubleshooting.rst file had "ssh" in
the text when it should have been "SSH".

Signed-off-by: Zac Dover <zac.dover@gmail.com>
(cherry picked from commit 384e7093c9808b38765d70549d754eafbd47742c)

Merge pull request #48594 from zdover23/wip-doc-2022-10-23-backport-48593-to-quincy

quincy: doc/cephadm: update install.rst

Reviewed-by: Cole Mitchell <cole.mitchell@gmail.com>

doc/cephadm: update install.rst

This commit addresses https://github.com/ceph/ceph/pull/43250,
which has remained unmerged for thirteen months. The issues
raised in that PR are addressed here.

This commit contributes to the simplification of the procedure
that explains how to install cephadm. More remains to be done
on this page, but the old PR had to be dealt with first.

Signed-off-by: Zac Dover <zac.dover@gmail.com>
(cherry picked from commit c8f01d3a32b889a0f3b68f619bfed36f6579c28b)

Merge pull request #48268 from vshankar/tr-57193

quincy: fsmap: switch to using iterator based loop

Reviewed-by: Milind Changire <mchangir@redhat.com>