clk: renesas: r8a77965: Replace DU2 clock

R-Car M3-N does not have the DU2 unit but it has DU3 instead.
Fix the module clock definition to reflect that.

Fixes: 7ce36da9 ("clk: renesas: cpg-mssr: Add support for R-Car M3-N")
Reported-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NJacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>

drivers/clk/renesas/r8a77965-cpg-mssr.c

@@ -173,7 +173,7 @@ static const struct mssr_mod_clk r8a77965_mod_clks[] __initconst = {
 	DEF_MOD("hsusb",		704,	R8A77965_CLK_S3D4),
 	DEF_MOD("csi20",		714,	R8A77965_CLK_CSI0),
 	DEF_MOD("csi40",		716,	R8A77965_CLK_CSI0),
-	DEF_MOD("du2",			722,	R8A77965_CLK_S2D1),
+	DEF_MOD("du3",			721,	R8A77965_CLK_S2D1),
 	DEF_MOD("du1",			723,	R8A77965_CLK_S2D1),
 	DEF_MOD("du0",			724,	R8A77965_CLK_S2D1),
 	DEF_MOD("lvds",			727,	R8A77965_CLK_S2D1),