ivas_lcld_encoder.c: Wrap WritePmodInformation() in ENABLE_PMOD_ADJUST

The function declaration WritePmodInformation() should be wrapped in #ifdef ENABLE_PMOD_ADJUST ... #endif - the function definition and its calls are already wrapped correspondingly.

Currently, it's causing a compiler warning:

lib_rend/ivas_lcld_encoder.c:485:16: warning: 'WritePmodInformation' declared 'static' but never defined [-Wunused-function]
  485 | static int32_t WritePmodInformation( const int32_t **ppiHiSMRFlags, IVAS_SPLIT_REND_BITS_HANDLE pBits, int32_t iChannels, int32_t iNumBands );