watchdog: ks8695_wdt: include mach/hardware.h instead of mach/timex.h.

ks8695_wdt needs KS8695_CLOCK_RATE, which is defined in
mach/hardware.h, which is pulled in by the include of mach/timex.h,
but the latter is going away, so just include mach/hardware.h
directly.
Signed-off-by: NYegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: NLennert Buytenhek <buytenh@secretlab.ca>
Signed-off-by: NWim Van Sebroeck <wim@iguana.be>

drivers/watchdog/ks8695_wdt.c

@@ -21,7 +21,7 @@
 #include <linux/watchdog.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
-#include <mach/timex.h>
+#include <mach/hardware.h>
 #include <mach/regs-timer.h>
 
 #define WDT_DEFAULT_TIME	5	/* seconds */