ARM: at91: move at91sam9260 SoCs to the CCF

This patch removes the selection of AT91_USE_OLD_CLK when selecting at91sam9260
SoCs support. This will automatically enable COMMON_CLK_AT91 option and add
support for at91 common clk implementation.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index c818136..a2efe6e 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -119,7 +119,6 @@
 	bool "AT91SAM9260, AT91SAM9XE or AT91SAM9G20"
 	select HAVE_AT91_DBGU0
 	select SOC_AT91SAM9
-	select AT91_USE_OLD_CLK
 	select HAVE_AT91_USB_CLK
 	help
 	  Select this if you are using one of Atmel's AT91SAM9260, AT91SAM9XE