clocksource: Exynos_mct: Use irq_force_affinity() in cpu bringup

clocksource: Exynos_mct: Use irq_force_affinity() in cpu bringup

The starting cpu is not yet in the online mask so irq_set_affinity()
fails which results in per cpu timers for this cpu ending up on some
other online cpu, ususally cpu 0.

Use irq_force_affinity() which disables the online mask check and
makes things work.

Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Krzysztof Kozlowski <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Marek Szyprowski <[email protected]>
Cc: Bartlomiej Zolnierkiewicz <[email protected]>
Cc: Tomasz Figa <[email protected]>,
Cc: Daniel Lezcano <[email protected]>,
Cc: Kukjin Kim <[email protected]>
Cc: [email protected],
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>