Using archos implementation/stock rom state of sound backend.
Re-Applied commit:
OMAP4: DPLL cascading: ASoC: ABE DSP: DPLL cascading: Add initial support

DPLL cascading mode can be entered when the following conditions
are met:
 - System is in early suspend (screen is off)
 - Multimedia Low-Power port is active (ping-pong)
 - OPP is 50 or less (DL1 path only)

ABE DSP driver will leave DPLL cascading mode when:
 - Screen is on
 - Any other port apart from Multimedia Low-Power is used
 - Stream is closed

[Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>:
Ported and adapted to p-android-omap-3.0]

Change-Id: Ib239730806e44456f45611c6eca1150733635470
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Signed-off-by: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>

Conflicts:
	arch/arm/mach-omap2/dpll44xx.c
Whoops, deactivated debugging code which prevents CWM to load.
Improved archos default config.