hw/intc/arm_gicv3: Add missing break

These are spotted by coverity 1356936 and 1356937.
Signed-off-by: NShannon Zhao <shannon.zhao@linaro.org>
Message-id: 1466387717-13740-1-git-send-email-zhaoshenglong@huawei.com
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

hw/intc/arm_gicv3_cpuif.c

@@ -975,6 +975,7 @@ static CPAccessResult gicv3_irqfiq_access(CPUARMState *env,
             if (!is_a64(env) && !arm_is_el3_or_mon(env)) {
                 r = CP_ACCESS_TRAP_EL3;
             }
+            break;
         default:
             g_assert_not_reached();
         }
@@ -1006,6 +1007,7 @@ static CPAccessResult gicv3_fiq_access(CPUARMState *env,
             if (!is_a64(env) && !arm_is_el3_or_mon(env)) {
                 r = CP_ACCESS_TRAP_EL3;
             }
+            break;
         default:
             g_assert_not_reached();
         }