Enabling fsanitize unsigned-integer-overflow in AMR-NB codecs

Enables fsanitize unsigned integer overflow in the AMR-NB codecs
and disables integer sanitization for the Chebps, sub, and
Syn_filt functions which contain controlled integer overflow
conditions.

Bug: 23110888
Change-Id: I036aa0e94f39e30c2d90be86d9b8f1b169f56245
4 files changed