opengl: make gl_headers available to host modules

Cherry-picks ag/13287439

Bug: 188569128
Test: build
Merged-In: I3dc40c1443c4db03ccf928dfa43263dc095a2d6c
Change-Id: Iee9c3ac8baeb58adc9daaf0cc79e706eceaa1639
diff --git a/opengl/Android.bp b/opengl/Android.bp
index 16ce15b..b15694b 100644
--- a/opengl/Android.bp
+++ b/opengl/Android.bp
@@ -66,6 +66,7 @@
 
 cc_library_headers {
     name: "gl_headers",
+    host_supported: true,
     vendor_available: true,
     export_include_dirs: ["include"],
     llndk: {