audio-hal: soft step volume params controls

set/get soft step volume control params values dynamically
for each usecase. each usecase can set different params values.
these values are set to module through mixer command.

Change-Id: I8ae200046ca5ab1ce253fc43e241d794fbb52183
Signed-off-by: Krishna Kishor Jha <quic_kkishorj@quicinc.com>
diff --git a/hal/Android.mk b/hal/Android.mk
old mode 100644
new mode 100755
index 3ba981d..8615268
--- a/hal/Android.mk
+++ b/hal/Android.mk
@@ -258,6 +258,11 @@
     LOCAL_CFLAGS += -DCONCURRENT_CAPTURE_ENABLED
 endif
 
+# soft step volume params control
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_SOFT_VOLUME)),true)
+    LOCAL_CFLAGS += -DSOFT_VOLUME
+endif
+
 # Hardware specific feature
 ifeq ($(strip $(AUDIO_FEATURE_ENABLED_QAP)),true)
 LOCAL_CFLAGS += -DQAP_EXTN_ENABLED -Wno-tautological-pointer-compare