This patch adds a simple control tool to setup during runtime (idle)
the IIR or FIR equalizer with new coefficients configuration. It is
useful in tuning of the equalizers. The tool also has capability to read
the EQ configuration from DSP.
Run "sof-eqctl -h" to see usage. The directory SOFT/tune/eq contains tool
to create EQ setup data.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>