[Feature][T106][task-view-97] open at macro switch in ap  for voice call
to rtp

Only Configure: No
Affected branch: unknown
Affected module: voice call and at
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: yes
Doc Update: yes

Change-Id: I3477d269bad548ab2d0308c35dd27828276d5ccf
diff --git a/ap/project/zx297520v3/prj_vehicle_dc_ref/build/config.mk b/ap/project/zx297520v3/prj_vehicle_dc_ref/build/config.mk
index 09631af..7928288 100755
--- a/ap/project/zx297520v3/prj_vehicle_dc_ref/build/config.mk
+++ b/ap/project/zx297520v3/prj_vehicle_dc_ref/build/config.mk
@@ -63,6 +63,9 @@
 #else

 #CUSTOM_MACRO += -D_CPE_AUDIO_PRJ

 endif

+ifeq ($(USE_VOICE_AT),yes)

+CUSTOM_MACRO += -D_USE_VOICE_AT

+endif

 ifeq ($(USE_VOICE_ALSA),yes)

 CUSTOM_MACRO += -D_USE_VOICE_ALSA

 endif