accel/tcg: Fix typo in translator_io_start() description

Missed while reviewing commit dfd1b81
("accel/tcg: Introduce translator_io_start").

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

include/exec/translator.h

@@ -159,7 +159,7 @@ bool translator_use_goto_tb(DisasContextBase *db, vaddr dest);
  * translator_io_start
  * @db: Disassembly context
  *
- * If icount is enabled, set cpu->can_to_io, adjust db->is_jmp to
+ * If icount is enabled, set cpu->can_do_io, adjust db->is_jmp to
  * DISAS_TOO_MANY if it is still DISAS_NEXT, and return true.
  * Otherwise return false.
  */