accel/tcg: Restrict cpu_io_recompile() to system emulation

Missed in commit 6526919224 ("accel/tcg: Restrict cpu_io_recompile()
from other accelerators").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20221209093649.43738-2-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg/internal.h

@@ -43,12 +43,12 @@ void tb_invalidate_phys_page_fast(struct page_collection *pages,
 struct page_collection *page_collection_lock(tb_page_addr_t start,
                                              tb_page_addr_t end);
 void page_collection_unlock(struct page_collection *set);
+G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
 #endif /* CONFIG_SOFTMMU */
 
 TranslationBlock *tb_gen_code(CPUState *cpu, target_ulong pc,
                               target_ulong cs_base, uint32_t flags,
                               int cflags);
-G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
 void page_init(void);
 void tb_htable_init(void);
 void tb_reset_jump(TranslationBlock *tb, int n);