hal: Add support for Fluence Far Field Voice

Add support for 6mic Fluence pre-processing of
captured stream using Far Field Voice (FFV) algorithm.

Change-Id: I7a643014f3e090482db7772dce2fc812fd469b2d
diff --git a/configure.ac b/configure.ac
index 978d235..9a17458 100644
--- a/configure.ac
+++ b/configure.ac
@@ -115,6 +115,7 @@
 AM_CONDITIONAL([AUDIO_PARSER], [test x$AUDIO_FEATURE_ENABLED_PARSER = xtrue])
 AM_CONDITIONAL([DTSHD_PARSER], [test x$AUDIO_FEATURE_ENABLED_DTSHD_PARSER = xtrue])
 AM_CONDITIONAL([QAP], [test x$AUDIO_FEATURE_ENABLED_QAP = xtrue])
+AM_CONDITIONAL([AUDIO_HW_FFV], [test x$AUDIO_FEATURE_ENABLED_FFV = xtrue])
 
 AC_CONFIG_FILES([ \
         Makefile \