hal: Add snd card support for atoll target

Add snd card support for all variants of
atoll target.

Change-Id: If6e21efa9c74925c19900f539eed0f2cc9bd4534
diff --git a/hal/audio_extn/hfp.c b/hal/audio_extn/hfp.c
index 55551dc..1088a0c 100644
--- a/hal/audio_extn/hfp.c
+++ b/hal/audio_extn/hfp.c
@@ -66,7 +66,7 @@
       defined (PLATFORM_QCS605) || defined (PLATFORM_MSMNILE) || \
       defined (PLATFORM_KONA) || defined (PLATFORM_MSMSTEPPE) || \
       defined (PLATFORM_QCS405) || defined (PLATFORM_TRINKET) || \
-      defined (PLATFORM_LITO)
+      defined (PLATFORM_LITO) || defined(PLATFORM_ATOLL)
 #define HFP_RX_VOLUME     "SLIMBUS_7 LOOPBACK Volume"
 #else
 #define HFP_RX_VOLUME     "Internal HFP RX Volume"