Move lsp config to local file structure

.config/nvim/lsp/ginko_ls.lua

@@ -0,0 +1,17 @@
+---@brief
+---
+---`ginko_ls` is meant to be a feature-complete language server for device-trees.
+--- Language servers can be used in many editors, such as Visual Studio Code, Emacs
+--- or Vim
+---
+--- Install `ginko_ls` from https://github.com/Schottkyc137/ginko and add it to path
+---
+--- `ginko_ls` doesn't require any configuration.
+
+---@type vim.lsp.Config
+return {
+  cmd = { 'ginko_ls' },
+  filetypes = { 'dts' },
+  root_markers = { '.git' },
+  settings = {},
+}