Addw2 support (#67)

* Add addw2 board

* Set charge params and update gpio.h

* Set VGA fan to 100% when entering scratch rom

* Implement keyboard LEDs

* Turn off keyboard LEDs in gpio defaults

* Default airplane mode LED to off

* Enable GPU power and fan control

* Add NVIDIA GPU power and temp to power.csv

* Add NVIDIA GPU fan value to power.sh

* Move GPU init back to coreboot

* Do not turn on GPU fan if GPU is off

* Show POST codes

* Add timestamps to console_external

* Accept port 81 cycles

* Move setting RSTS into ec_init

* Move post code debugging to system76/common

* Move some GPIO init from system76/common to boards

* Make some power signals optional

* Remove POST code support - it only works on IT5570

src/board/system76/lemp9/board.c

@@ -1,12 +1,26 @@
 #include <board/board.h>
-#include <board/gctrl.h>
 #include <board/gpio.h>
 #include <board/power.h>
 
 extern uint8_t main_cycle;
 
 void board_init(void) {
-    RSTS = 0x44;
+    // Allow CPU to boot
+    gpio_set(&SB_KBCRST_N, true);
+    // Allow backlight to be turned on
+    gpio_set(&BKL_EN, true);
+    // Enable camera
+    gpio_set(&CCD_EN, true);
+    // Enable wireless
+    gpio_set(&BT_EN, true);
+    gpio_set(&WLAN_EN, true);
+    gpio_set(&WLAN_PWR_EN, true);
+    // Enable right USB port
+    gpio_set(&USB_PWR_EN_N, false);
+    // Assert SMI#, SCI#, and SWI#
+    gpio_set(&SCI_N, true);
+    gpio_set(&SMI_N, true);
+    gpio_set(&SWI_N, true);
 }
 
 void board_event(void) {