[cleanup] accept ENV_STAB_FIX

#define SBA_BR_SWITCHING_RECONFIG                       /* Issue 114: Changes for SBA bitrate switching with reconfiguration for bitrates with different number of transport channels*/

#endif

#define FIX_FIX_I59                                     /* Issue 59:  small fix concerning LFE delay rounding */

#define ENV_STAB_FIX                                    /* Contribution 23: HQ envelope stability memory fix */

#define STABILIZE_GIPD                                  /* FhG: Contribution 22: gIPD stabilization */

#define FIX_292_VBAP_CALLOC_REMOVAL                     /* Nokia: Fixes issue 292 by removing the remnant callocs */

#define FIX_293_EXT_RENDERER_CLI                        /* FhG: Fix bugs in external renderer CLI */