x86: Convert remaining x86 clocksources to clocksource_register_hz/khz

This converts the remaining x86 clocksources to use
clocksource_register_hz/khz.

CC: jacob.jun.pan@intel.com
CC: Glauber Costa <glommer@redhat.com>
CC: Dimitri Sivanich <sivanich@sgi.com>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Jeremy Fitzhardinge <jeremy@xensource.com>
CC: Chris McDermott <lcm@us.ibm.com>
CC: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen]
Signed-off-by: John Stultz <johnstul@us.ibm.com>

arch/x86/lguest/boot.c

@@ -913,8 +913,6 @@ static struct clocksource lguest_clock = {
 	.rating		= 200,
 	.read		= lguest_clock_read,
 	.mask		= CLOCKSOURCE_MASK(64),
-	.mult		= 1 << 22,
-	.shift		= 22,
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
@@ -997,7 +995,7 @@ static void lguest_time_init(void)
 	/* Set up the timer interrupt (0) to go to our simple timer routine */
 	set_irq_handler(0, lguest_time_irq);
 
-	clocksource_register(&lguest_clock);
+	clocksource_register_hz(&lguest_clock, NSEC_PER_SEC);
 
 	/* We can't set cpumask in the initializer: damn C limitations!  Set it
 	 * here and register our timer device. */