arm64: renesas: r8a7795: enable PFC

From: Kuninori Morimoto <[email protected]>

Add a PFC node for the on-chip r8a7795 pin controller.

---

Changes since V9: (Magnus Damm <[email protected]>)
- None

Changes since V8: (Magnus Damm <[email protected]>)
- Dropped Kconfig TODO - select PINCTRL happens in patch 1
- Added Acked-by from Laurent

Changes since V7: (Magnus Damm <[email protected]>)
- Added changelog

Based on:
[PATCH 10/25 v7][RFC] arm64: renesas: r8a7795: enable PFC

 arch/arm64/boot/dts/renesas/r8a7795.dtsi |    5 +++++
 1 file changed, 5 insertions(+)

@@ -278,6 +278,11 @@
 			};
 		};
 
+		pfc: pfc@e6060000 {
+			compatible = "renesas,pfc-r8a7795";
+			reg = <0 0xe6060000 0 0x50c>;
+		};
+
 		dmac0: dma-controller@e6700000 {
 			/* Empty node for now */
 		};