Encoder paths float code cleanup, LTV crash fixes, Q-info updates for lib_com files
[x] Intermediate float conversion cleanup, float structure variable cleanup
[x] Q-info updates for lib_com files
[x] LTV crash issue fixes for encoder: +10db ltv case: [ltv-Multi-channel 5_1 at 13.2 kbps, 48kHz in, 48kHz out]