simplified computation of LTP coefs

silk/VQ_WMat_EC.c

silk/control_codec.c

silk/fixed/corrMatrix_FIX.c

silk/fixed/find_LTP_FIX.c

silk/fixed/find_pred_coefs_FIX.c

silk/fixed/main_FIX.h

silk/fixed/solve_LS_FIX.c

silk/float/find_LTP_FLP.c

silk/float/find_pred_coefs_FLP.c

silk/float/main_FLP.h

silk/float/solve_LS_FLP.c

silk/float/wrappers_FLP.c

silk/lin2log.c

silk/main.h

silk/quant_LTP_gains.c

silk/structs.h

silk/tables.h

silk/tables_LTP.c

silk/tuning_parameters.h

silk/x86/main_sse.h