feat: add proxy header for cpu_set_t

Author: krishna2803

libc/hdr/types/cpu_set_t.h

@@ -0,0 +1,22 @@
+//===-- Proxy for cpu_set_t -----------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_HDR_TYPES_CPU_SET_T_H
+#define LLVM_LIBC_HDR_TYPES_CPU_SET_T_H
+
+#ifdef LIBC_FULL_BUILD
+
+#include "include/llvm-libc-types/cpu_set_t.h"
+
+#else // Overlay mode
+
+#include <sched.h>
+
+#endif // LLVM_LIBC_FULL_BUILD
+
+#endif // LLVM_LIBC_HDR_TYPES_CPU_SET_T_H