[CI] Revise dtx modes in ivas_modes.json
In the course of checking our DTX testvector coverage, I reviewed the bitrates for DTX modes in scripts/config/ivas_modes.json
and added some missing bitrates in MASA modes.
In the course of checking our DTX testvector coverage, I reviewed the bitrates for DTX modes in scripts/config/ivas_modes.json
and added some missing bitrates in MASA modes.