Move system76_ec::init() into serial::init()

src/arch/x86_shared/device/serial.rs

@@ -10,6 +10,9 @@ pub static COM2: Mutex<SerialKind> = Mutex::new(SerialKind::NotPresent);
 pub static LPSS: Mutex<SerialKind> = Mutex::new(SerialKind::NotPresent);
 
 pub unsafe fn init() {
+    #[cfg(feature = "system76_ec_debug")]
+    super::system76_ec::init();
+
     if cfg!(not(feature = "serial_debug")) {
         // FIXME remove serial_debug feature once ACPI SPCR is respected on UEFI boots.
         return;

src/arch/x86_shared/start.rs

@@ -90,9 +90,6 @@ pub unsafe extern "C" fn kstart(args_ptr: *const KernelArgs) -> ! {
             // Set up graphical debug
             graphical_debug::init(env);
 
-            #[cfg(feature = "system76_ec_debug")]
-            device::system76_ec::init();
-
             info!("Redox OS starting...");
             info!(
                 "Kernel: {:X}:{:X}",