Port MR2232 from float - Cleanup 20250902

Basic Info

• Original merge request in float repo: ivas-codec-pc/ivas-codec!2232 (merged)

Acceptance of

• FIX_1330_JBM_MEMORY - VA: issue 1330: memory savings in the JBM decoder -> accept
• FIX_1370_EXTERNAL_ORIENTATION_CHECK - Nokia: add sanity check for Euler angles for external orientations -> accept
• FIX_1371_EARLY_PART_INIT_FASTCONV - Nokia: fix uninitialized variable in FASTCONV path of binaural reverb init -> ported within FIX_1139_REV_COLORATION_SHORT_T60 which was cleanoud out in cleaned out with !2178 (merged) / !2180 (merged)

Note: thick box indicates whether the switch was already ported