msm: pm-8x60: Switch to using udelay in msm_pm_wait_cpu_shutdown

msm_pm_wait_cpu_shutdown() is invoked by platform_cpu_kill() for hotplug
and reboot framework to ensure that the core is power collapsed. The
function is called in atomic context in the reboot code path. Since
usleep() cannot be called in atomic context switch to using udelay().

Change-Id: Ie7a580a9a6841c679a63457bed71c884654c70fd
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
1 file changed