soong: Add Qti_flac_decoder config

Change-Id: I07b9676d19de917f04d491e1a1dc65398ddc1edd
diff --git a/build/soong/android/variable.go b/build/soong/android/variable.go
index c58afa4..e73b350 100644
--- a/build/soong/android/variable.go
+++ b/build/soong/android/variable.go
@@ -23,6 +23,10 @@
 	Qcom_bsp_legacy struct {
 		Cflags []string
 	}
+
+	Qti_flac_decoder struct {
+		Cflags []string
+	}
 }
 
 type ProductVariables struct {
@@ -35,4 +39,5 @@
 	QTIMediaPath            *string `json:",omitempty"`
 	Cant_reallocate_omx_buffers *bool `json:",omitempty"`
 	Qcom_bsp_legacy         *bool `json:",omitempty"`
+	Qti_flac_decoder        *bool `json:",omitempty"`
 }
diff --git a/build/soong/soong_config.mk b/build/soong/soong_config.mk
index 18d119d..8987c71 100644
--- a/build/soong/soong_config.mk
+++ b/build/soong/soong_config.mk
@@ -14,5 +14,6 @@
 	echo '    "QTIMediaPath":  "$(call project-path-for,qcom-media)",';  \
 	echo '    "Cant_reallocate_omx_buffers":  $(if $(filter omap4,$(TARGET_BOARD_PLATFORM)),true,false),';  \
 	echo '    "Qcom_bsp_legacy":  $(if $(filter msm7x27a msm7x30 msm8660 msm8960,$(TARGET_BOARD_PLATFORM)),true,false),';  \
-        echo '},'; \
+	echo '    "Qti_flac_decoder":  $(if $(strip $(AUDIO_FEATURE_ENABLED_EXTN_FLAC_DECODER)),true,false)';  \
+	echo '},'; \
 	echo '') > $(SOONG_VARIABLES_TMP)