This converts the microblaze clocksources to use clocksource_register_hz/khz CC: Michal Simek <monstr@monstr.eu> CC: Thomas Gleixner <tglx@linutronix.de> Tested-by: Michal Simek <monstr@monstr.eu> Signed-off-by: John Stultz <johnstul@us.ibm.com>