ucm-config: limit input and output sampling rate on Scarlett usb audio device

Limit both input and output sampling rate to 48000 for Scarlett usb
audio devices as they do not support using different rate for input
and output at the same time.

TEST=1.Connect Scarlett usb audio device.
     2.Play spotify, then join meet, and verify audio is correct.

Change-Id: I21db9809e0596d1f6c2fdf105d800f7ba29df182
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/2796743
Reviewed-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Reviewed-by: Cheng-Yi Chiang <cychiang@chromium.org>
Commit-Queue: Judy Hsiao <judyhsiao@chromium.org>
Tested-by: Judy Hsiao <judyhsiao@chromium.org>
4 files changed