Resolve "Renderer granularity revision"

• Related issues: #1303 (closed), #1301 (closed)
• Requested reviewers: @tamarapu

Reason why this change is needed

• Revision of function ivas_jbm_dec_get_render_granularity() + use it consistently in all formats which causes confusion and flaws.

Description of the change

• Revision of function ivas_jbm_dec_get_render_granularity() and use it consistently in all formats.
• Call function ivas_jbm_dec_set_discard_samples() at one common place.
• Solves the issue #1301 (closed) and is an alternative to !2057 (closed).
• Correctly set the granularity in OSBA, Disc mode, and BINAURAL_ROOM_REVERB output.

Affected operating points

• All is BE, except OSBA with HRTF loading