PA-RISC sound updates:

 - Do a DAC/ADC reset for sampling rate changes in ad1889 (Randolph Chung)
 - Set the ad1889 interrupt configuration properly (Randolph Chung)
 - Fix dependency for the OSS Harmony driver (Thibaut Varene)
 - Forward port Stuart Brady's 2.4 Harmony driver patches (Thibaut Varene)
   - Fix sample skipping (Stuart Brady)
   - Prevent harmony_silence being called wrongly (Stuart Brady)
   - Fix crash caused by buf_to_fill becoming -1 (Stuart Brady)
   - Improve naming of mixer channels (Stuart Brady)
   - Implement SNDCTL_DSP_CHANNELS ioctl (Stuart Brady)
   - Improve toggling the recording source (Stuart Brady)
   - Sanity check MIXER_WRITE volume levels (Stuart Brady)
   - Fix MIXER_READ right_level return (Stuart Brady)
   - Reject AFMT_S16_LE format (Stuart Brady)
 - Fail OSS Harmony initialisation if no irq (Helge Deller)
 - Fix typos in ALSA Harmony (Andy Walker, Grant Grundler, Stuart Brady)