ASoC: Hook up microphone jack detection on 1133-EV1 board

Note that since all the microphones share a bias there is a single
jack exported for all three, even though there are two physical
connectors plus the soldered down silicon mic.  Note also that the SiMic
is always present by default.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

diff --cc sound/soc/imx/wm1133-ev1.c
Simple merge