hal: Fix backend configuration for 24 bit offload playback

Backend sample rate configuration follows:
16 bit playback - 48khz for streams at any valid sample rate
24 bit playback - 48khz for stream sample rate upto 48khz
24 bit playback - 96khz for sample rate range of 48khz to 96khz
24 bit playback - 192khz for sample rate range of 96khz to 192 khz
For invalid or out of range sample rate, default rate is 48K
Upper limit is inclusive in the sample rate range

Change-Id: I48ace6d9135b1e0a450bcc5cc39498da619115a5