[ARM] pxa: select CPU_PXA310 for MACH_COLIBRI300

MACH_COLIBRI300 is supposed to support both PXA300 and PXA310, select
the missing CPU_PXA310.
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>
Acked-by: NDaniel Mack <daniel@caiaq.de>

arch/arm/mach-pxa/Kconfig

@@ -254,6 +254,7 @@ config MACH_COLIBRI300
 	bool "Toradex Colibri PXA300/310"
 	select PXA3xx
 	select CPU_PXA300
+	select CPU_PXA310
 
 config MACH_COLIBRI320
 	bool "Toradex Colibri PXA320"