ASoC: remove BROKEN from Efika and pcm030 fabric drivers

The needed spin_event_timeout() macro is now merged in from the
powerpc tree, so these drivers are no longer broken.  This reverts
commit 0c0e09e2

 (ASoC: Mark MPC5200
AC97 as BROKEN until PowerPC merge issues are resolved)

Tested against 2.6.31-rc1.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>