initialize the sample rate converter on es1371 chips to 48 kHz instead of 22.5 kHz, since this is an ac97(4) device, and the default sample rate for ac97(4) is 48 kHz.
initialize the sample rate converter on es1371 chips to 48 kHz instead
of 22.5 kHz, since this is an ac97(4) device, and the default sample
rate for ac97(4) is 48 kHz.

tested by jasper@, thanks

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars