Revert head tracking parameter back to pointer, move head tracking data readings under headRotEnabled

issue 1388: fix use-of-uninitialized value in ivas_init_decoder(); under FIX_1388_MSAN_ivas_init_decoder

issue 1384: fix use-of-uninitialized value in stereo_tcx_core_enc(); under FIX_1384_MSAN_stereo_tcx_core_enc

issue 1386: fix use-of-uninitialized value in ivas_spar_dec_open(); under FIX_1384_MSAN_ivas_spar_dec_open

removed a warning where a 32 bit value was compared against a 16 bit value in main() of the ambi_converter.c application.

Merge branch '1403-ambisonics-format-converter-problems' of https://forge.3gpp.org/rep/ivas-codec-pc/ivas-codec into 1403-ambisonics-format-converter-problems

address HRTF leftovers

See merge request !2254

Co-authored-by: Archit Tamarapu <archit.tamarapu@iis.fraunhofer.de>

- Merge remote-tracking branch 'remotes/origin/main' into 1386-msan-clang-18-use-of-uninitialized-value-in-ivas_spar_dec_open

Fix [MSAN Clang 18] use-of-uninitialized value in ivas_spar_dec_open

See merge request !2261

- Merge remote-tracking branch 'remotes/origin/main' into 1384-msan-clang-18-use-of-uninitialized-value-in-stereo_tcx_core_enc

Fix [MSAN Clang 18] use-of-uninitialized-value in stereo_tcx_core_enc

See merge request !2248

- Merge remote-tracking branch 'remotes/origin/main' into 1388-msan-clang-18-use-of-uninitialized-value-in-ivas_init_decoder

Fix [MSAN Clang 18] use-of-uninitialized value in ivas_init_decoder

See merge request !2247

Merge remote-tracking branch 'origin/main' into 1383-sanitizer-issue-when-accessing-headrotdata-in-ivas-rend

Resolve "Sanitizer issue when accessing headRotData in IVAS rend"

See merge request !2244

Merge remote-tracking branch 'origin/main' into 1344-support-of-lower-sample-rates-in-masa-prerenderer-algorithms-within-external-renderer

Merge branch '1344-support-of-lower-sample-rates-in-masa-prerenderer-algorithms-within-external-renderer' into 'main'

Resolve "Support of lower sample rates in MASA prerenderer algorithms within external renderer"

See merge request !2246

Resolve "Remove leftover scripts related to stripping split rendering"

See merge request !2255

Resolve "[MSAN Clang 18] use-of-uninitialized value in open_decoder_LPD"

See merge request !2267

Resolve "[MSAN Clang 18] use-of-uninitialized value in ivas_mdct_core_invQ"

See merge request !2266

Resolve "Ambisonics format converter problems"

See merge request !2265

Merge branch '1398-compilation-errors-for-split-rendering-code-when-debugging-is-enabled' into 'main'

Resolve "Compilation errors for split-rendering code when DEBUGGING is enabled"

See merge request !2252

# Conflicts:
#	lib_com/options.h