RUM-7302: Align log levels for sr already enabled

[jonathanmos]

What does this PR do?

Aligns the log levels with iOS for the error we output when a user tries to enable session replay twice (either on the same core or on different cores) - "Session Replay is already enabled"

Motivation

On iOS they output an error to the user and debug to the telemetry.

Additional Notes

Anything else we should know when reviewing?

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.75%. Comparing base (ff6002f) to head (8a6a881).
Report is 4 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2399      +/-   ##
===========================================
- Coverage    69.82%   69.75%   -0.07%     
===========================================
  Files          763      763              
  Lines        28360    28363       +3     
  Branches      4763     4761       -2     
===========================================
- Hits         19801    19782      -19     
- Misses        7246     7258      +12     
- Partials      1313     1323      +10     

Files with missing lines	Coverage Δ
...com/datadog/android/sessionreplay/SessionReplay.kt	72.09% <100.00%> (+2.86%)	⬆️

... and 31 files with indirect coverage changes