clk: renesas: r8a774c0: Fix LAST_DT_CORE_CLK

Enum LAST_DT_CORE_CLK needs updating as R8A774C0_CLK_CANFD
was recently added and it's the core clock with the highest
index.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Fixes: 2a6efbc6da ("clk: renesas: r8a774c0: Add missing CANFD clock")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/renesas/r8a774c0-cpg-mssr.c

@@ -22,7 +22,7 @@
 
 enum clk_ids {
 	/* Core Clock Outputs exported to DT */
-	LAST_DT_CORE_CLK = R8A774C0_CLK_CPEX,
+	LAST_DT_CORE_CLK = R8A774C0_CLK_CANFD,
 
 	/* External Input Clocks */
 	CLK_EXTAL,