ralink: the systick clocksource was calculating a bad bogo mips value

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45554 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ramips/patches-3.18/0063-cevt-rt3352.patch

+--- a/arch/mips/ralink/cevt-rt3352.c
++++ b/arch/mips/ralink/cevt-rt3352.c
+@@ -54,7 +54,7 @@
+ 	sdev = container_of(evt, struct systick_device, dev);
+ 	count = ioread32(sdev->membase + SYSTICK_COUNT);
+ 	count = (count + delta) % SYSTICK_FREQ;
+-	iowrite32(count + delta, sdev->membase + SYSTICK_COMPARE);
++	iowrite32(count, sdev->membase + SYSTICK_COMPARE);
+ 
+ 	return 0;
+ }