Add battery charging hook, disabled by default

src/board/system76/galp3-c/main.c

@@ -3,6 +3,7 @@
 #include <stdio.h>
 
 #include <arch/delay.h>
+#include <board/battery.h>
 #include <board/gpio.h>
 #include <board/gctrl.h>
 #include <board/kbc.h>
@@ -87,6 +88,8 @@ void power_button() {
     if (!new && last) {
         printf("Power switch\n");
 
+        // battery_charger_enable();
+
         battery_debug();
         //gpio_set(&DD_ON, true);
     }