target/loongarch: Constify loongarch_tcg_ops

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index dd3e46a..fb8dde7 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -734,7 +734,7 @@
 #ifdef CONFIG_TCG
 #include "hw/core/tcg-cpu-ops.h"
 
-static TCGCPUOps loongarch_tcg_ops = {
+static const TCGCPUOps loongarch_tcg_ops = {
     .initialize = loongarch_translate_init,
     .synchronize_from_tb = loongarch_cpu_synchronize_from_tb,
     .restore_state_to_opc = loongarch_restore_state_to_opc,