Add pipelines for iir and fir eq as EFX (endpoint effect) component in
hda. Add HDA_CONFIG "efx" to compile efx versions of hda_generic
pipelines.
Add define EFX_IIR_PARAMS and EFX_FIR_PARAMS to define different iir and
fir parameters from separate conf files during compile time (default
"passthrough").
Signed-off-by: Jaska Uimonen <jaska.uimonen@intel.com>