target/moxie: Fix tlb_fill

We should not exit unless moxie_cpu_handle_mmu_fault has failed.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <richard.henderson@linaro.org>

target/moxie/helper.c

@@ -36,9 +36,8 @@ void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
 
     ret = moxie_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
     if (unlikely(ret)) {
-        cpu_restore_state(cs, retaddr);
+        cpu_loop_exit_restore(cs, retaddr);
     }
-    cpu_loop_exit(cs);
 }
 
 void helper_raise_exception(CPUMoxieState *env, int ex)