Export symbols

Author: bdero

shell/platform/android/android_exports.lst

@@ -9,6 +9,8 @@
     JNI_OnLoad;
     _binary_icudtl_dat_start;
     _binary_icudtl_dat_size;
+    InternalFlutterGpu*;
+    kInternalFlutterGpu*;
   local:
     *;
 };