Replace hard-coded 10737418 (1 / FRAMES_PER_SEC * MAX_PARAM_SPATIAL_SUBFRAMES in Q31) by macro

Bug description

At various places, (1 / FRAMES_PER_SEC * MAX_PARAM_SPATIAL_SUBFRAMES in Q31) is represented by 10737418 - however, a macro should be used instead of it.

Ways to reproduce

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