[ALSA] soc - ASoC 0.13 AT91xxxx Eti_B1 board support

[ALSA] soc - ASoC 0.13 AT91xxxx Eti_B1 board support

This patch updates the EtI B1 machine driver to the new API in ASoC
0.13.
Changes:-
o  Manually configure DAI hardware format.
o Removed config_sysclk() function. No longer needed as clocking is now
configured manually.

Signed-off-by: Frank Mandarino <fmandarino@endrelia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>