[alln][fdio] Move //zircon/system/ulib/fdio to //sdk/lib/fdio

Bug: 54057
Change-Id: I8dd924c7a259378147ee44fe1f2d64b35c503349
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/sbase/+/405946
Reviewed-by: P.Y. Laligand <pylaligand@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 1546bae..fa87a52 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -155,7 +155,7 @@
     deps = [
       "libutf",
       "libutil",
-      "//zircon/public/lib/fdio",
+      "//sdk/lib/fdio",
     ]
 
     configs += [ ":sbase_config" ]