pinctrl: renesas: rza1: Fix kerneldoc function names

make W=1:

drivers/pinctrl/renesas/pinctrl-rza1.c:770: warning: expecting prototype for rza1_gpio_disable_free(). Prototype was for rza1_gpio_free() instead
drivers/pinctrl/renesas/pinctrl-rza1.c:889: warning: expecting prototype for rza1_parse_pmx_function(). Prototype was for rza1_parse_pinmux_node() instead

Fixes: 5a49b644b3075f88 ("pinctrl: Renesas RZ/A1 pin and gpio controller")
Signed-off-by: Geert Uytterhoeven <[e-mail]>
Reviewed-by: Jacopo Mondi <[e-mail]>
Link: https://lore.kernel.org/r/2188e[e-mail]

drivers/pinctrl/renesas/pinctrl-rza1.c

···
 }
 
 /**
- * rza1_gpio_disable_free() - reset a pin
+ * rza1_gpio_free() - reset a pin
  *
- * Surprisingly, disable_free a gpio, is equivalent to request it.
+ * Surprisingly, freeing a gpio is equivalent to requesting it.
  * Reset pin to port mode, with input buffer disabled. This overwrites all
  * port direction settings applied with set_direction
  *
···
 }
 
 /**
- * rza1_parse_pmx_function() - parse a pin mux sub-node
+ * rza1_parse_pinmux_node() - parse a pin mux sub-node
  *
  * @rza1_pctl: RZ/A1 pin controller device
  * @np: of pmx sub-node