msm: acpuclock-cortex: Use a polling function which doesn't sleep

Acpuclock polls a register during both atomic and nonatomic scenarios. Use
a macro which will work in both cases.

Change-Id: Ie9f4950e8d20cf82bec26a2b5c8ebdb594f3e6af
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
1 file changed