omap4-common: fix ttyO1-permissions for whisper(dock)-service

Change-Id: I553247b275f5b6c4e419c5676a6d75b672db4ebf
omap4-common: enable analog dock-audio

Change-Id: I3b4dd94db11a2c72714052ef16fd8f6996204006
omap4-common: ALSA: make sure to return from poll()

Change-Id: Ib1fc8f1f4c988450ba13a5add3af33e0d26d7d2c
omap4-common: HDMI: honor preferred-flag on video-mode

Change-Id: I04931358f7b6799c49d648ac50fa62ddf3880d57