[Clang] Add missing requires directives for new test

Summary:
Forgot to add this.

Author: jhuber6

clang/test/Driver/linker-wrapper-libs.c

@@ -1,3 +1,7 @@
+// REQUIRES: x86-registered-target
+// REQUIRES: nvptx-registered-target
+// REQUIRES: amdgpu-registered-target
+
 // RUN: %clang -cc1 %s -triple x86_64-unknown-linux-gnu -emit-obj -o %t.elf.o
 
 #if defined(RESOLVES)