Add system/media/audio/include to commonGlobalIncludes

This list now matches the make build system.

Change-Id: Ife723733f269bdcc00a0c2e9096e3e2cb7e6f88e
diff --git a/cc/cc.go b/cc/cc.go
index 65ccf3d..a5c14e1 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -129,6 +129,7 @@
 	pctx.PrefixedPathsForOptionalSourceVariable("commonGlobalIncludes", "-isystem ",
 		[]string{
 			"system/core/include",
+			"system/media/audio/include",
 			"hardware/libhardware/include",
 			"hardware/libhardware_legacy/include",
 			"hardware/ril/include",