fix(bluetooth): Advertise name + appearance.

* Properly put device name and GAP appearance
  in advertising packets, for proper display in
  macOS, Android, etc.
* Closes #124

app/src/ble.c

@@ -54,13 +54,18 @@ enum advertising_type {
 #define CURR_ADV(adv) (adv << 4)
 
 #define ZMK_ADV_CONN_NAME                                                                          \
-    BT_LE_ADV_PARAM(BT_LE_ADV_OPT_CONNECTABLE | BT_LE_ADV_OPT_ONE_TIME | BT_LE_ADV_OPT_USE_NAME,   \
-                    BT_GAP_ADV_FAST_INT_MIN_2, BT_GAP_ADV_FAST_INT_MAX_2, NULL)
+    BT_LE_ADV_PARAM(BT_LE_ADV_OPT_CONNECTABLE | BT_LE_ADV_OPT_ONE_TIME, BT_GAP_ADV_FAST_INT_MIN_2, \
+                    BT_GAP_ADV_FAST_INT_MAX_2, NULL)
 
 static struct zmk_ble_profile profiles[PROFILE_COUNT];
 static u8_t active_profile;
 
+#define DEVICE_NAME CONFIG_BT_DEVICE_NAME
+#define DEVICE_NAME_LEN (sizeof(DEVICE_NAME) - 1)
+
 static const struct bt_data zmk_ble_ad[] = {
+    BT_DATA(BT_DATA_NAME_COMPLETE, DEVICE_NAME, DEVICE_NAME_LEN),
+    BT_DATA_BYTES(BT_DATA_GAP_APPEARANCE, 0xC1, 0x03),
     BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)),
     BT_DATA_BYTES(BT_DATA_UUID16_SOME,
 #if !IS_ENABLED(CONFIG_ZMK_SPLIT_BLE_ROLE_PERIPHERAL)