Build is broken.

[Amar Takhar]

On 2015-12-07 18:01 -0500, Eric S. Raymond wrote:
> ntpd/refclock_irig.c.10.o: In function `irig_start':
> refclock_irig.c:(.text+0x1f): undefined reference to `audio_init'
> refclock_irig.c:(.text+0x41): undefined reference to `audio_show'
> ntpd/refclock_irig.c.10.o: In function `irig_gain':
> refclock_irig.c:(.text+0x213e): undefined reference to `audio_gain'
> collect2: error: ld returned 1 exit status

grr, I thought I had enabled testing refclocks in Buildbot..forgot to enable the 
change.

Fixing now.


Amar.