tcg: Adjust tcg_register_jit for const

We must change all targets at once, since all must match
the declaration in tcg.c.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc
index 197e300..d272975 100644
--- a/tcg/i386/tcg-target.c.inc
+++ b/tcg/i386/tcg-target.c.inc
@@ -3976,7 +3976,7 @@
 #endif
 
 #if defined(ELF_HOST_MACHINE)
-void tcg_register_jit(void *buf, size_t buf_size)
+void tcg_register_jit(const void *buf, size_t buf_size)
 {
     tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
 }