hal: add audio support for msmnile

Add audio support for msmnile.

Change-Id: I742d9acbc42221476d1364e9c7bcce8a5d782bf4
diff --git a/hal/audio_extn/hfp.c b/hal/audio_extn/hfp.c
index 0d9f9ae..97a2ad4 100644
--- a/hal/audio_extn/hfp.c
+++ b/hal/audio_extn/hfp.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -55,7 +55,7 @@
 #define HFP_RX_VOLUME     "SEC AUXPCM LOOPBACK Volume"
 #elif defined PLATFORM_MSM8996
 #define HFP_RX_VOLUME     "PRI AUXPCM LOOPBACK Volume"
-#elif defined (PLATFORM_MSM8998) || defined (PLATFORM_MSMFALCON) || defined (PLATFORM_SDM845) || defined (PLATFORM_SDM670) || defined (PLATFORM_QCS605)
+#elif defined (PLATFORM_MSM8998) || defined (PLATFORM_MSMFALCON) || defined (PLATFORM_SDM845) || defined (PLATFORM_SDM670) || defined (PLATFORM_QCS605) || defined (PLATFORM_MSMNILE)
 #define HFP_RX_VOLUME     "SLIMBUS_7 LOOPBACK Volume"
 #else
 #define HFP_RX_VOLUME     "Internal HFP RX Volume"