fix(bluetooth): Proper max paired/conns.

* Proper max values for both split central, and
  non-split keyboards.

app/Kconfig

@@ -132,14 +132,28 @@ endif
 
 endif 
 
-if ZMK_BLE && (!ZMK_SPLIT_BLE || ZMK_SPLIT_BLE_ROLE_CENTRAL)
+if ZMK_BLE
+
+if ZMK_SPLIT_BLE && ZMK_SPLIT_BLE_ROLE_CENTRAL
 
 config BT_MAX_CONN
 	default 6
 
 config BT_MAX_PAIRED
+	default 6
+
+endif
+
+if !ZMK_SPLIT_BLE
+
+config BT_MAX_CONN
 	default 5
 
+config BT_MAX_PAIRED
+	default 5
+
+endif
+
 endif
 
 endmenu