sync_tcx_mode_fx(): Wrong comment
# Bug description
There are wrong comments in sync_tcx_mode_fx():
Floating-point code:
```
if ( ( prevAccNrg0 * 25.0f > prevAccNrg1 ) && ( prevAccNrg1 * 25.0f > prevAccNrg0 ) && /* 14 dB */
( lastAccNrg0 * 16.0f > lastAccNrg1 ) && ( lastAccNrg1 * 16.0f > lastAccNrg0 ) ) /* 12 dB */
```
Fixed-point code:
```
IF( GT_32( prevAccNrg0, Mpy_32_16_1( prevAccNrg1, 1311 /*1/25 in Q15*/ ) ) && GT_32( prevAccNrg1, Mpy_32_16_1( prevAccNrg0, 1311 /*1/25 in Q15*/ ) ) /* 14 dB */
&& GT_32( lastAccNrg0, Mpy_32_16_1( lastAccNrg1, 2048 /*1/12 in Q15*/ ) ) && GT_32( lastAccNrg1, Mpy_32_16_1( lastAccNrg0, 2048 /*1/12 in Q15*/ ) ) ) /* 12 dB */
```
Obviously, 2048 corresponds to 1/16 in Q15...
issue