Migrate 'make git-submodule' to CLI command (#19479)

lib/python/qmk/cli/__init__.py

@@ -61,6 +61,7 @@ subcommands = [
     'qmk.cli.generate.rgb_breathe_table',
     'qmk.cli.generate.rules_mk',
     'qmk.cli.generate.version_h',
+    'qmk.cli.git.submodule',
     'qmk.cli.hello',
     'qmk.cli.import.kbfirmware',
     'qmk.cli.import.keyboard',

lib/python/qmk/cli/git/submodule.py

@@ -0,0 +1,22 @@
+import shutil
+from qmk.path import normpath
+
+from milc import cli
+
+REMOVE_DIRS = [
+    'lib/ugfx',
+    'lib/pico-sdk',
+    'lib/chibios-contrib/ext/mcux-sdk',
+    'lib/lvgl',
+]
+
+
+@cli.subcommand('Git Submodule actions.')
+def git_submodule(cli):
+    for folder in REMOVE_DIRS:
+        if normpath(folder).is_dir():
+            print(f"Removing '{folder}'")
+            shutil.rmtree(folder)
+
+    cli.run(['git', 'submodule', 'sync', '--recursive'], capture_output=False)
+    cli.run(['git', 'submodule', 'update', '--init', '--recursive', '--progress'], capture_output=False)