!621 Fix llvm-15 build error

Merge pull request !621 from yinchuang/fix_llvm15_communication_ipc

ipc/native/test/unittest/common/ipc_c_message_parcel_unittest.cpp

@@ -20,6 +20,7 @@
 #include "c_ashmem.h"
 #include "c_parcel.h"
 #include "c_parcel_internal.h"
+#include <fcntl.h>
 
 using namespace testing::ext;
 using namespace OHOS;
@@ -581,4 +582,4 @@ HWTEST_F(IpcCMessageParcelUnitTest, ReadAndWriteAshmemTest, TestSize.Level1)
     CloseCAshmem(ashmem);
     UnmapCAshmem(ashmem2);
     CloseCAshmem(ashmem2);
-}
\ No newline at end of file
+}