clk: renesas: r8a7796: Add CAN FD peripheral clock

Based on a patch for r8a7795 by Ramesh Shanmugasundaram.
Signed-off-by: Chris Paterson <chris.paterson2@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/clk/renesas/r8a7796-cpg-mssr.c

@@ -182,6 +182,7 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
 	DEF_MOD("gpio2",		 910,	R8A7796_CLK_S3D4),
 	DEF_MOD("gpio1",		 911,	R8A7796_CLK_S3D4),
 	DEF_MOD("gpio0",		 912,	R8A7796_CLK_S3D4),
+	DEF_MOD("can-fd",		 914,	R8A7796_CLK_S3D2),
 	DEF_MOD("can-if1",		 915,	R8A7796_CLK_S3D4),
 	DEF_MOD("can-if0",		 916,	R8A7796_CLK_S3D4),
 	DEF_MOD("i2c6",			 918,	R8A7796_CLK_S0D6),