Enable cpufreq on Genesi efika platforms

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Index: linux-2.6-submit/arch/arm/mach-mx5/mx51_efika.c
===================================================================
--- linux-2.6-submit.orig/arch/arm/mach-mx5/mx51_efika.c	2011-02-02 09:59:43.000000000 +0100
+++ linux-2.6-submit/arch/arm/mach-mx5/mx51_efika.c	2011-02-02 10:00:10.000000000 +0100
@@ -47,6 +47,7 @@
 #include "devices-imx51.h"
 #include "devices.h"
 #include "efika.h"
+#include "cpu_op-mx51.h"
 
 #define MX51_USB_CTRL_1_OFFSET          0x10
 #define MX51_USB_CTRL_UH1_EXT_CLK_EN    (1 << 25)
@@ -637,5 +638,9 @@
 	spi_register_board_info(mx51_efika_spi_board_info,
 		ARRAY_SIZE(mx51_efika_spi_board_info));
 	imx51_add_ecspi(0, &mx51_efika_spi_pdata);
+
+#if defined(CONFIG_CPU_FREQ_IMX)
+	get_cpu_op = mx51_get_cpu_op;
+#endif
 }