soong: handle qcom audio/display/media paths

Change-Id: I7c463cac11773fc690f931fe4d35d72a5a203b23
diff --git a/build/soong/soong_config.mk b/build/soong/soong_config.mk
index abb91c3..4267001 100644
--- a/build/soong/soong_config.mk
+++ b/build/soong/soong_config.mk
@@ -8,4 +8,7 @@
 	echo '    "Mtk_hardware": $(if $(filter true,$(BOARD_USES_MTK_HARDWARE)),true,false),'; \
 	echo '    "BoardUsesQTIHardware":  $(if $(BOARD_USES_QTI_HARDWARE),true,false),';  \
 	echo '    "Libart_img_base": "$(LIBART_IMG_BASE)",'; \
+	echo '    "QTIAudioPath":  "$(call project-path-for,qcom-audio)",'; \
+	echo '    "QTIDisplayPath":  "$(call project-path-for,qcom-display)",'; \
+	echo '    "QTIMediaPath":  "$(call project-path-for,qcom-media)",';  \
 	echo '') > $(SOONG_VARIABLES_TMP)