soong_config: Add TARGET_USES_MEDIA_EXTENSIONS variable

* Soong product variable 'uses_media_extensions'

Change-Id: Icf36c7e4a90ace7a4c603c63ab1126c1554ffab8
Signed-off-by: Adrian DC <radian.dc@gmail.com>
diff --git a/build/soong/android/variable.go b/build/soong/android/variable.go
index 20294a7..08a30ba 100644
--- a/build/soong/android/variable.go
+++ b/build/soong/android/variable.go
@@ -3,8 +3,13 @@
 	Has_legacy_camera_hal1 struct {
 		Cflags []string
 	}
+
+	Uses_media_extensions struct {
+		Cflags []string
+	}
 }
 
 type ProductVariables struct {
 	Has_legacy_camera_hal1  *bool `json:",omitempty"`
+	Uses_media_extensions   *bool `json:",omitempty"`
 }
diff --git a/build/soong/soong_config.mk b/build/soong/soong_config.mk
index 8a1bd68..2c01471 100644
--- a/build/soong/soong_config.mk
+++ b/build/soong/soong_config.mk
@@ -3,4 +3,5 @@
 	$(hide) (\
 	echo '{'; \
 	echo '    "Has_legacy_camera_hal1": $(if $(filter true,$(TARGET_HAS_LEGACY_CAMERA_HAL1)),true,false),'; \
+	echo '    "Uses_media_extensions": $(if $(filter true,$(TARGET_USES_MEDIA_EXTENSIONS)),true,false),'; \
 	echo '') > $(SOONG_VARIABLES_TMP)