add ubsan suppression file for basop

# From the scheduled sanitizer tests with self_test.py

# lib_com

implicit-integer-sign-change:lib_com/ACcontextMapping_fx.c

implicit-integer-sign-change:lib_com/bitstream_fx.c

implicit-integer-sign-change:lib_com/enh64.c

implicit-signed-integer-truncation:lib_com/enh1632.c

implicit-signed-integer-truncation:lib_com/enhUL32.c

invalid-shift-base:lib_com/enh64.c

invalid-shift-exponent:lib_com/basop32.c

invalid-shift-exponent:lib_com/enh64.c

out-of-bounds-index:lib_com/ifft_rel.c

out-of-bounds-index:lib_com/log2.c

out-of-bounds-index:lib_com/tcx_ltp_fx.c

out-of-bounds-index:lib_com/trans_direct_fx.c

out-of-bounds-index:lib_com/trans_inv_fx.c

signed-integer-overflow:lib_com/enh64.c

# lib_enc

implicit-integer-sign-change:lib_enc/ACcontextMapping_enc_fx.c

implicit-integer-sign-change:lib_enc/bass_psfilter_enc_fx.c

implicit-integer-sign-change:lib_enc/cod4t64_fx.c

implicit-integer-sign-change:lib_enc/core_enc_ol_fx.c

implicit-integer-sign-change:lib_enc/enc_acelp_fx.c

implicit-integer-sign-change:lib_enc/enc_prm_fx.c

implicit-integer-sign-change:lib_enc/hq_classifier_enc_fx.c

implicit-integer-sign-change:lib_enc/inov_enc_fx.c

implicit-integer-sign-change:lib_enc/lead_indexing_fx.c

implicit-integer-sign-change:lib_enc/range_enc_fx.c

implicit-integer-sign-change:lib_enc/tcx_utils_enc_fx.c

out-of-bounds-index:lib_enc/enc_acelp_fx.c

out-of-bounds-index:lib_enc/enc_gain_fx.c

out-of-bounds-index:lib_enc/pit_enc_fx.c

out-of-bounds-index:lib_enc/pitch_ol2_fx.c

out-of-bounds-index:lib_enc/tcx_ltp_enc_fx.c

# lib_dec

out-of-bounds-index:lib_dec/dec_acelp_fx.c