hal: Limit multichannel clips >48khz to 48Khz

-Configuring copp and backend at 48Khz for multichannel
clips > 48khz
-This is to address ADSP MIPS concern for playback of multichannel
 clip with sample rate > 48khz with pp (SA+ or SA+_HPX)

Change-Id: Ic010ce212011519e729601d067f8ddb6737c6b28
5 files changed