ARM: rmobile: beacon: Enable reference clocks for USB and AVB

Both Ethernet and USB drivers get their reference clocks from
the versaclock.  Enable that driver and the common clock driver
by default.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/arch/arm/mach-rmobile/Kconfig.64 b/arch/arm/mach-rmobile/Kconfig.64
index d76c3a7..007eaad 100644
--- a/arch/arm/mach-rmobile/Kconfig.64
+++ b/arch/arm/mach-rmobile/Kconfig.64
@@ -94,6 +94,8 @@
 	select PINCTRL_PFC_R8A774E1
 	imply MULTI_DTB_FIT
 	imply MULTI_DTB_FIT_USER_DEFINED_AREA
+	imply CLK_VERSACLOCK
+	imply CLK_CCF
 
 config TARGET_CONDOR
 	bool "Condor board"