Enable CLI flashing via mdloader (#14729)

* Enable CLI flashing via mdloader

* remove flag

* Update qmk flash help

lib/python/qmk/cli/flash.py

@@ -18,17 +18,21 @@ def print_bootloader_help():
     """Prints the available bootloaders listed in docs.qmk.fm.
     """
     cli.log.info('Here are the available bootloaders:')
+    cli.echo('\tavrdude')
+    cli.echo('\tbootloadhid')
     cli.echo('\tdfu')
+    cli.echo('\tdfu-util')
+    cli.echo('\tmdloader')
+    cli.echo('\tst-flash')
+    cli.echo('\tst-link-cli')
+    cli.log.info('Enhanced variants for split keyboards:')
+    cli.echo('\tavrdude-split-left')
+    cli.echo('\tavrdude-split-right')
     cli.echo('\tdfu-ee')
     cli.echo('\tdfu-split-left')
     cli.echo('\tdfu-split-right')
-    cli.echo('\tavrdude')
-    cli.echo('\tBootloadHID')
-    cli.echo('\tdfu-util')
     cli.echo('\tdfu-util-split-left')
     cli.echo('\tdfu-util-split-right')
-    cli.echo('\tst-link-cli')
-    cli.echo('\tst-flash')
     cli.echo('For more info, visit https://docs.qmk.fm/#/flashing')