[sdk] prebuilt_shared_library --> sdk_shared_library

Test: built SDK archive.
Bug: DX-416
Change-Id: I445122b494997ba580c0ea9aa1a307a30cc8c0d1
diff --git a/BUILD.gn b/BUILD.gn
index ac61081..0e02dab 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -2,7 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//build/cpp/prebuilt_shared_library.gni")
+import("//build/cpp/sdk_shared_library.gni")
 import("//build/package.gni")
 import("BUILD.generated.gni")
 import("BUILD.generated_tests.gni")
@@ -18,7 +18,7 @@
 }
 
 if (is_fuchsia) {
-  library_type = "prebuilt_shared_library"
+  library_type = "sdk_shared_library"
 } else {
   library_type = default_library_type
 }