clk: renesas: r8a7796: Add PWM clock

This patch adds PWM clock for PWM.
Signed-off-by: Ryo Kodama <ryo.kodama.vz@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
[geert: Correct parent clock]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

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

@@ -156,6 +156,7 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
 	DEF_MOD("hscif1",		 519,	R8A7796_CLK_S3D1),
 	DEF_MOD("hscif0",		 520,	R8A7796_CLK_S3D1),
 	DEF_MOD("thermal",		 522,	R8A7796_CLK_CP),
+	DEF_MOD("pwm",			 523,	R8A7796_CLK_S0D12),
 	DEF_MOD("fcpvd2",		 601,	R8A7796_CLK_S0D2),
 	DEF_MOD("fcpvd1",		 602,	R8A7796_CLK_S0D2),
 	DEF_MOD("fcpvd0",		 603,	R8A7796_CLK_S0D2),