m68knommu: select CONFIG_HAVE_CLK for ColdFire CPU types

The ColdFire CPU sub-arch has kernel clk code support, so select
CONFIG_HAVE_CLK.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

arch/m68k/Kconfig.cpu

@@ -28,6 +28,7 @@ config COLDFIRE
 	select CPU_HAS_NO_BITFIELDS
 	select CPU_HAS_NO_MULDIV64
 	select GENERIC_CSUM
+	select HAVE_CLK
 
 endchoice