hal: Update Single mic device from Fluence to ECNS

- Single mic fluence devices are never used when fluence type is
  not enabled. When fluence is not enabled, single mic devices
  should use ECNS.
- Remove checks for fluence type to enable set echo reference for
  non fluence usecases.

CRs-Fixed: 2275470
Change-Id: I6d76e6332960663583a082c0de933854403255f5
diff --git a/hal/msm8916/platform.h b/hal/msm8916/platform.h
index 4acfde9..9782b0a 100644
--- a/hal/msm8916/platform.h
+++ b/hal/msm8916/platform.h
@@ -398,6 +398,7 @@
 #define TX_VOICE_DM_FV5_BROADSIDE 0x10F18
 #define TX_VOICE_FV5ECNS_SM 0x10F09
 #define TX_VOICE_FV5ECNS_DM 0x10F0A
+#define TX_VOICE_SMECNS_V2 0x10F31
 
 #define AUDIO_MAKE_STRING_FROM_ENUM(X)   { #X, X }