Harmonization of find_uv and find_uv_ivas

Basic info

• Float reference:
  • Encoder (float):
  • Decoder (float):
• Fixed point:
  • Encoder (fixed): a0051869
  • Decoder (fixed):

Bug description

With some minimal adjustment, the same code can be used core classification for both EVS and IVAS. The modification is bit exact, and should save around 500 Ln of code.

Ways to reproduce

Box folder: ...\Box_EXTERNAL_IVAS_BASOP_VERIFICATION\issues\issue-xxxx