clk: renesas: Import R8A774C0 clock tables from Linux 5.9

Import RZ/G2E (R8A774C0) clock tables from Linux 5.9 commit
bbf5c979011a ("Linux 5.9").

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index 44afcec..0c8b9eb 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -61,6 +61,12 @@
 	help
 	  Enable this to support the clocks on Renesas R8A774B1 SoC.
 
+config CLK_R8A774C0
+	bool "Renesas R8A774C0 clock driver"
+	depends on CLK_RCAR_GEN3
+	help
+	  Enable this to support the clocks on Renesas R8A774C0 SoC.
+
 config CLK_R8A774E1
 	bool "Renesas R8A774E1 clock driver"
 	depends on CLK_RCAR_GEN3