use top button to wake hibernated gat562 mesh watch

variants/gat562_mesh_watch13/GAT56MeshWatch13Board.h

@@ -35,7 +35,7 @@ public:
 
 
   void powerOff() override {
-    uint32_t button_pin = PIN_BUTTON2;
+    uint32_t button_pin = PIN_BUTTON1;
     nrf_gpio_cfg_input(button_pin, NRF_GPIO_PIN_PULLUP);
     nrf_gpio_cfg_sense_set(button_pin, NRF_GPIO_PIN_SENSE_LOW);
     sd_power_system_off();