clk: renesas: r8a779h0: Add PFC/GPIO clocks

Add the module clocks used by the Pin Function Controller (PFC) and
General Purpose Input/Output (GPIO) blocks on the Renesas R-Car V4M
(R8A779H0) SoC.

Signed-off-by: Cong Dang <cong.dang.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/a7d8f4111b87decb825db5ed310de8294f90b9f9.1706266196.git.geert+renesas@glider.be

Author: CongDang

drivers/clk/renesas/r8a779h0-cpg-mssr.c

@@ -177,6 +177,9 @@ static const struct mssr_mod_clk r8a779h0_mod_clks[] = {
 	DEF_MOD("hscif1",	515,	R8A779H0_CLK_SASYNCPERD1),
 	DEF_MOD("hscif2",	516,	R8A779H0_CLK_SASYNCPERD1),
 	DEF_MOD("hscif3",	517,	R8A779H0_CLK_SASYNCPERD1),
+	DEF_MOD("pfc0",		915,	R8A779H0_CLK_CP),
+	DEF_MOD("pfc1",		916,	R8A779H0_CLK_CP),
+	DEF_MOD("pfc2",		917,	R8A779H0_CLK_CP),
 };
 
 /*