[flutter][fonts] Update dependencies for fonts migration

- Replace //garnet/packages/prod:fonts dependencies with //src/fonts
- //garnet/bin/fonts/third_party/ => //prebuilt/third_party/fonts/

Depends-On: I48ab8d9924e6eb13d75936bd2f1742781dfa7109
Bug: I18N-33 #comment
Change-Id: Ie68df75aabd55acb467c597454fc87dac1e928df
diff --git a/packages/prod/BUILD.gn b/packages/prod/BUILD.gn
index 70befc3..0231af5 100644
--- a/packages/prod/BUILD.gn
+++ b/packages/prod/BUILD.gn
@@ -148,7 +148,7 @@
 group("term") {
   testonly = true
   public_deps = [
-    "//garnet/packages/prod:fonts",
+    "//src/fonts",
     "//topaz/app/term",
   ]
 }
diff --git a/packages/tests/BUILD.gn b/packages/tests/BUILD.gn
index cae43ed..d75b3fd 100644
--- a/packages/tests/BUILD.gn
+++ b/packages/tests/BUILD.gn
@@ -199,7 +199,7 @@
 group("flutter_runner_tests") {
   testonly = true
   public_deps = [
-    "//garnet/packages/prod:fonts",
+    "//src/fonts",
     "//topaz/runtime/flutter_runner:flutter_runner_tests",
   ]
 }
diff --git a/runtime/flutter_runner/BUILD.gn b/runtime/flutter_runner/BUILD.gn
index e5c4eb4..bc86ab3 100644
--- a/runtime/flutter_runner/BUILD.gn
+++ b/runtime/flutter_runner/BUILD.gn
@@ -504,7 +504,7 @@
   foreach(font, fonts) {
     resources += [
       {
-        path = rebase_path("//garnet/bin/fonts/third_party/${font}")
+        path = rebase_path("//prebuilt/third_party/fonts/${font}")
         file_name = get_path_info(font, "file")
         dest = "testdata/test_fonts/${file_name}"
       },