[gndoc] Update GN build arguments documentation

Roller-URL: https://ci.chromium.org/b/8856972178184515248
Cq-Cl-Tag: roller-builder:fuchsia-docs-roller
Cq-Cl-Tag: roller-bid:8856972178184515248
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ia4a189bd63a3e43276f8b08e38590d192ce86240
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/476299
Reviewed-by: Docs Roller <docs-roller@fuchsia-infra.iam.gserviceaccount.com>
Commit-Queue: Docs Roller <docs-roller@fuchsia-infra.iam.gserviceaccount.com>
diff --git a/docs/gen/build_arguments.md b/docs/gen/build_arguments.md
index 61fe1d7..3c1b76b 100644
--- a/docs/gen/build_arguments.md
+++ b/docs/gen/build_arguments.md
@@ -1109,20 +1109,24 @@
 
 ### flutter_default_build_cfg
 Non-product AOT
+flutter_default_build_cfg = flutter_profile_build_cfg
+TODO(fxbug.dev/67583) Disabling aot builds until this crash
+is resolved. This is not the flutter_debug_build_cfg because it
+does not enable asserts.
 
 **Current value (from the default):**
 ```
 {
   enable_asserts = false
-  is_aot = true
+  is_aot = false
   is_product = false
   platform_name = "flutter_runner"
-  runner_dep = "//src/flutter:flutter_aot_runner"
-  runtime_meta = "//build/flutter/meta/aot_runtime"
+  runner_dep = "//src/flutter:flutter_jit_runner"
+  runtime_meta = "//build/flutter/meta/jit_runtime"
 }
 ```
 
-From //build/flutter/config.gni:22
+From //build/flutter/config.gni:26
 
 ### flutter_driver_enabled
 Enables/Disables flutter driver using '--args=flutter_driver_enabled=[true/false]'