Documentation: devres: add missing PINCTRL helpers

Add devm_pinctrl_get_select() and devm_pinctrl_register_and_init() to
devres.rst.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220922153737.2863951-1-yangyingliang@huawei.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Author: Yang Yingliang

Documentation/driver-api/driver-model/devres.rst

@@ -392,7 +392,9 @@ PHY
 PINCTRL
   devm_pinctrl_get()
   devm_pinctrl_put()
+  devm_pinctrl_get_select()
   devm_pinctrl_register()
+  devm_pinctrl_register_and_init()
   devm_pinctrl_unregister()
 
 POWER