ASoC: TI AESS: add autogating-enable function, callable from architecture code
ASoC: TI AESS: add autogating-enable function, callable from architecture code

Add a basic header file for the TI AESS IP block, located in the OMAP4
Audio Back-End subsystem.

Currently, this header file only contains a function to enable the
AESS internal clock auto-gating.  This will be used by a subsequent
patch to ensure that the AESS won't block the entire chip
low-power-idle mode.  We wish to be able to place the AESS into idle
even when no AESS driver has been compiled in.

Signed-off-by: Paul Walmsley <a027184a55211cd23e3f3094f1fdc728df5e0500@pwsan.com>
Cc: Liam Girdwood <a57ef363056e61beffa2efa59c68550d40db03b0@ti.com>
Cc: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@opensource.wolfsonmicro.com>
Cc: Péter Ujfalusi <e5c0b4cdf99ae1d408b9c497159e74b54e02e008@ti.com>
Cc: Tony Lindgren <1001e8702733cced254345e193c88aaa47a4f5de@atomide.com>
Acked-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@opensource.wolfsonmicro.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas