pinctrl: rzn1: Do not select GENERIC_PIN{CTRL_GROUPS,MUX_FUNCTIONS}

The RZ/N1 pin control driver does not use pin groups or pin functions,
so there is no need to select GENERIC_PINCTRL_GROUPS or
GENERIC_PINMUX_FUNCTIONS.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200909131534.12897-2-geert+renesas@glider.be

drivers/pinctrl/sh-pfc/Kconfig

@@ -179,8 +179,6 @@ config PINCTRL_RZN1
 	bool "pin control support for RZ/N1"
 	depends on OF
 	depends on ARCH_RZN1 || COMPILE_TEST
-	select GENERIC_PINCTRL_GROUPS
-	select GENERIC_PINMUX_FUNCTIONS
 	select GENERIC_PINCONF
 	help
 	  This selects pinctrl driver for Renesas RZ/N1 devices.