pinctrl: renesas: Drop special RZN1 entry from Makefile

The RZN1 symbol name is CONFIG_RZN1, there is no CONFIG_ARCH_RZN1.
Since RZN1 enables CONFIG_ARCH_RENESAS as well, remove the special
RZN1 entry from Makefile, the RZN1 pinctrl driver will still be
pulled in via CONFIG_ARCH_RENESAS.

Fixes: e4aea57fa773 ("pinctrl: renesas: add R906G032 driver")
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 634047a..5e76c86 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -15,7 +15,6 @@
 obj-$(CONFIG_ARCH_NPCM)         += nuvoton/
 obj-$(CONFIG_PINCTRL_QCOM) += qcom/
 obj-$(CONFIG_ARCH_RENESAS) += renesas/
-obj-$(CONFIG_ARCH_RZN1) += renesas/
 obj-$(CONFIG_PINCTRL_SANDBOX)	+= pinctrl-sandbox.o
 obj-$(CONFIG_PINCTRL_SUNXI)	+= sunxi/
 obj-$(CONFIG_$(XPL_)PINCTRL_TEGRA)	+= tegra/