hal: initial setup for bengal

Change-Id: I0d3b908937fdeb3d6b0a5677646e1876ef4ab06b
diff --git a/hal/audio_extn/hfp.c b/hal/audio_extn/hfp.c
index 9b60083..62eb9e6 100644
--- a/hal/audio_extn/hfp.c
+++ b/hal/audio_extn/hfp.c
@@ -66,7 +66,8 @@
       defined (PLATFORM_QCS605) || defined (PLATFORM_MSMNILE) || \
       defined (PLATFORM_KONA) || defined (PLATFORM_MSMSTEPPE) || \
       defined (PLATFORM_QCS405) || defined (PLATFORM_TRINKET) || \
-      defined (PLATFORM_LITO) || defined(PLATFORM_ATOLL)
+      defined (PLATFORM_LITO) || defined(PLATFORM_ATOLL) || \
+      defined (PLATFORM_BENGAL)
 #define HFP_RX_VOLUME     "SLIMBUS_7 LOOPBACK Volume"
 #else
 #define HFP_RX_VOLUME     "Internal HFP RX Volume"