Port MR2215 from float - Cleanup of switches 20250819

Basic Info

• Original merge request in float repo: ivas-codec-pc/ivas-codec!2215 (merged)

Acceptance of

• CODE_IMPROVEMENTS /* FhG: Small code improvements that do not change the functionality */
• NONBE_1359_FIX_IVASREND_OMASA_BINAURAL_LOUDNESS /* Nokia: issue 1339: Apply scaling to the object-part of OMASA for binaural rendering in IVAS_rend. */
• NONBE_1362_FIX_OMASA_TO_MASA1_RENDERING /* Nokia: Fix OMASA to MASA1 rendering in IVAS_rend */
• NONBE_1360_LFE_DELAY /* Dlb: LFE delay alignment when rendering in CLDFB domain*/ -> cleaned out with !2178 (merged) / !2180 (merged)

Note: thick box indicates whether the switch was already ported