hw/riscv: Constify VMState

Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20231221031652.119827-49-richard.henderson@linaro.org>

hw/riscv/virt-acpi-build.c

@@ -374,7 +374,7 @@ static const VMStateDescription vmstate_virt_acpi_build = {
     .name = "virt_acpi_build",
     .version_id = 1,
     .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
+    .fields = (const VMStateField[]) {
         VMSTATE_BOOL(patched, AcpiBuildState),
         VMSTATE_END_OF_LIST()
     },