accel/tcg: Introduce TCGCPUOps.cpu_exec_reset

Initialize all instances with cpu_reset(), so that there
is no functional change.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/openrisc/cpu.c

@@ -255,6 +255,7 @@ static const TCGCPUOps openrisc_tcg_ops = {
     .tlb_fill = openrisc_cpu_tlb_fill,
     .cpu_exec_interrupt = openrisc_cpu_exec_interrupt,
     .cpu_exec_halt = openrisc_cpu_has_work,
+    .cpu_exec_reset = cpu_reset,
     .do_interrupt = openrisc_cpu_do_interrupt,
 #endif /* !CONFIG_USER_ONLY */
 };