audio: add suport for 24 bit capture

to support 24 bit encoding add mixer path to set backend bit width to 24_LE and 16_LE based on usecase
add PCM_8_24_BIT format to primary input in audio policy

Bug: 27907185

E audio_route: unable to find path 'set-capture-format-default'

Change-Id: I9928f7a4283ba0a4a4c190b6c7db6e1edcf89134

sonyxperiadev / device-sony-suzu