ASoC: OMAP: Remove obsolete machine drivers for Zoom2 and SDP3430

These boards are using the common omap-twl4030 machine driver, no need for
separate machine drivers anymore.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --cc sound/soc/omap/Kconfig
Simple merge

diff --cc sound/soc/omap/Makefile
Simple merge

diff --cc sound/soc/omap/sdp3430.c
Simple merge

diff --cc sound/soc/omap/zoom2.c
Simple merge