Keyboard: Add evil80 keyboard (#3921)

* Add evil80 keyboard

* Delete rules.mk

* Update config.h

* Update keymap.c

* Update keymap.c

keyboards/evil80/evil80.c

@@ -0,0 +1,47 @@
+#include "evil80.h"
+void matrix_init_kb(void) {
+    // put your keyboard start-up code here
+    // runs once when the firmware starts up
+    led_init_ports();
+    matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+    // put your looping keyboard code here
+    // runs every cycle (a lot)
+
+    matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+    // put your per-action keyboard code here
+    // runs for every action, just before processing by the firmware
+
+    return process_record_user(keycode, record);
+}
+
+void led_init_ports(void) {
+    DDRB |= (1<<6) | (1<<7); // OUT
+}
+
+void led_set_kb(uint8_t usb_led) {
+    if (usb_led & (1<<USB_LED_CAPS_LOCK))
+    {
+        PORTB |= (1<<6); // HI
+    }
+    else
+    {
+        PORTB &= ~(1<<6); // LO
+    }
+
+    if (usb_led & (1<<USB_LED_SCROLL_LOCK))
+    {
+        PORTB |= (1<<7); // HI
+    }
+    else
+    {
+        PORTB &= ~(1<<7); // LO
+    }
+
+    led_set_user(usb_led);
+}