Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

There are many firmwares available for ADSP devices. Add basic support
for selecting between them, including a couple of feature sets in the
set of available firmware to start off with.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

WMDR coefficient files can specify coefficients in terms of algorithm
specific data regions. Record the start addresses of these regions while
parsing the algorithms and then use them to handle coefficients with
these formats.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Some ADSP devices can make use of DVFS to optimise power consumption
depending on the operating frequency of the DSP core. Implement
support for this in the generic ADSP code.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

Many current Wolfson devices feature DSPs based around an architecture
known as ADSP.  Since there is a lot of commonality in the system
integration of these devices a common library will be used to provide
support for them.

This version provides equivalent support for ADSP1 to that currently
included in the WM2200 driver.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>