ARM: shmobile: add fsi external clock on r8a7740

xcka/xckb were required from FSI driver
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NSimon Horman <horms@verge.net.au>

arch/arm/mach-shmobile/clock-r8a7740.c

@@ -625,6 +625,8 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_ICK_ID("ickb", "sh_fsi2",	&div6_reparent_clks[DIV6_FSIB]),
 	CLKDEV_ICK_ID("diva", "sh_fsi2",	&fsidivs[FSIDIV_A]),
 	CLKDEV_ICK_ID("divb", "sh_fsi2",	&fsidivs[FSIDIV_B]),
+	CLKDEV_ICK_ID("xcka", "sh_fsi2",	&fsiack_clk),
+	CLKDEV_ICK_ID("xckb", "sh_fsi2",	&fsibck_clk),
 };
 
 void __init r8a7740_clock_init(u8 md_ck)