ASoC: wcd9xxx: Enable headset in high performance

Invoke class AB mode for headset path when sample rate
is set to 192KHz and bit width is set to 24. Change enables
headset path in Ultra High Quality Audio(UHQA)mode.

Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
ASoC: wcd9320: Enable class AB and expose sysfs