gn: try to fix flutter roll

Change-Id: I8503ee596b35a45b5b0269cd6af98569115212cb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/239116
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index c1c7a9c..6fe195e 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -6,13 +6,14 @@
 import("gn/flutter_defines.gni")
 import("gn/fuchsia_defines.gni")
 import("gn/shared_sources.gni")
-import("gn/skia.gni")
 
 if (is_fuchsia) {
   import("//build/fuchsia/sdk.gni")
   import("//build/vulkan/config.gni")
 }
 
+import("gn/skia.gni")
+
 if (skia_use_dawn) {
   import("third_party/externals/dawn/scripts/dawn_features.gni")
 }