GN(android): Fix up support for is_asan=true

build/config/android/internal_rules.gni

Index: build/config/android/internal_rules.gni
diff --git a/build/config/android/internal_rules.gni b/build/config/android/internal_rules.gni
index 3d91676e9f4b641d9c182ef1c0d9e88dc406a615..94d309ff0555185b2b49a6a1aa8128c6ee6e7338 100644
--- a/build/config/android/internal_rules.gni
+++ b/build/config/android/internal_rules.gni
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//build/config/android/config.gni")
+import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/zip.gni")
 import("//third_party/ijar/ijar.gni")
 
@@ -1971,6 +1972,9 @@ template("test_runner_script") {
         "--num_retries=0",
       ]
     }
+    if (is_asan) {
+      test_runner_args += [ "--tool=asan" ]
+    }
 
     generated_script = "$root_build_dir/bin/run_${_test_name}"
     outputs = [