[components] src/sys/build -> build/components

Change-Id: I54a0c56392f56221b1bbc632e03c1b17fe28dff8
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/boringssl/+/515583
Fuchsia-Auto-Submit: Shai Barack <shayba@google.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
Reviewed-by: Allison Pearce <ampearce@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index f1dbddb..b836a11 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -7,7 +7,7 @@
 import("BUILD.generated_tests.gni")
 
 if (is_fuchsia) {
-  import("//src/sys/build/components.gni")
+  import("//build/components.gni")
 }
 
 declare_args() {