ARM: OMAP4+: omap2plus_defconfig: Enable audio via TWL6040 as module

Boards supported upstream all use TWL6040 as audio codec, enable the common
ASoC machine driver by default for them.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/configs/omap2plus_defconfig

@@ -153,6 +153,7 @@ CONFIG_OMAP_WATCHDOG=y
 CONFIG_TWL4030_WATCHDOG=y
 CONFIG_MFD_TPS65217=y
 CONFIG_MFD_TPS65910=y
+CONFIG_TWL6040_CORE=y
 CONFIG_REGULATOR_TWL4030=y
 CONFIG_REGULATOR_TPS65023=y
 CONFIG_REGULATOR_TPS6507X=y
@@ -195,6 +196,7 @@ CONFIG_SND_USB_AUDIO=m
 CONFIG_SND_SOC=m
 CONFIG_SND_OMAP_SOC=m
 CONFIG_SND_OMAP_SOC_OMAP_TWL4030=m
+CONFIG_SND_OMAP_SOC_OMAP_ABE_TWL6040=m
 CONFIG_SND_OMAP_SOC_OMAP3_PANDORA=m
 CONFIG_USB=y
 CONFIG_USB_DEBUG=y