[build] //zircon/public/fidl --> //zircon/system/fidl

Bug: 3367
Change-Id: I0cf27478c29936c8d1200ed8897bc115e63d502d
diff --git a/BUILD.gn b/BUILD.gn
index 8685693..6d0688a 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -55,7 +55,7 @@
     "fuchsia/fuchsia-compat.h",
   ]
   public_deps = [
-    "//zircon/public/fidl/fuchsia.hardware.pty:fuchsia.hardware.pty_c",
+    "//zircon/system/fidl/fuchsia-hardware-pty:fuchsia-hardware-pty_c",
     "//zircon/public/lib/async",
     "//zircon/public/lib/async-loop",
     "//zircon/public/lib/fdio",
@@ -427,7 +427,7 @@
     "//zircon/public/lib/fdio",
   ]
   public_deps = [
-    "//zircon/public/fidl/fuchsia.hardware.pty:fuchsia.hardware.pty_c",
+    "//zircon/system/fidl/fuchsia-hardware-pty:fuchsia-hardware-pty_c",
   ]
 }