Add carriage_return to const file

[AviadP]

added ENTER_KEY, needed for odf cli testing

[shylesh]

lgtm

[openshift-ci]

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This pull-request has been approved by: AviadP, OdedViner, shylesh

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[shylesh]

Currently, no test is exercising this path. However, Aviad will soon have some scenarios which need this code.Hence merging this PR.

[ocs-ci]

PR validation

Cluster Name:
Cluster Configuration:
PR Test Suite: acceptance
PR Test Path: tests/
Additional Test Params:
OCP VERSION: 4.16-ga
OCS VERSION: 4.16
tested against branch: master

Job FAILED (installation failed, tests not executed).