[xen master] xen/riscv: update two license headers

[patchbot@xxxxxxx]

commit 60b18e55c2ad0e0c840422b25b155a1544542907
Author:     Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
AuthorDate: Tue May 2 12:04:14 2023 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue May 2 12:04:14 2023 +0200

    xen/riscv: update two license headers
    
    Updated the license header in a separate comment of its own.
    
    Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
    Reviewed-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/riscv/include/asm/csr.h            | 3 +--
 xen/arch/riscv/include/asm/riscv_encoding.h | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/xen/arch/riscv/include/asm/csr.h b/xen/arch/riscv/include/asm/csr.h
index 8215562343..be57dcce1c 100644
--- a/xen/arch/riscv/include/asm/csr.h
+++ b/xen/arch/riscv/include/asm/csr.h
@@ -1,6 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * SPDX-License-Identifier: GPL-2.0-only
- *
  * Copyright (C) 2015 Regents of the University of California
  */
 
diff --git a/xen/arch/riscv/include/asm/riscv_encoding.h 
b/xen/arch/riscv/include/asm/riscv_encoding.h
index 43dd4f6981..58abe5eccc 100644
--- a/xen/arch/riscv/include/asm/riscv_encoding.h
+++ b/xen/arch/riscv/include/asm/riscv_encoding.h
@@ -1,6 +1,5 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
 /*
- * SPDX-License-Identifier: BSD-2-Clause
- *
  * Copyright (c) 2019 Western Digital Corporation or its affiliates.
  *
  * Authors:
--
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