Align with BASOP in ivas_decode_masaism_metadata

Basic info

• Encoder (float):
• Decoder:

Bug description

The changes brought to the float reference code in the process of conversion to BASOP were not ported to the floating point code. The corresponding change in the BASOP git is in !619 (merged)

Ways to reproduce

(Clear steps or refer to a failing automated test, e.g. with a pipeline link)