[CPUFREQ] EXYNOS: Calculate old_index based on freqs.old

Do not calculate old_index with cpufreq_frequency_table_target because it
won't give the correct old_index if the policy got changed. Hence, use
freqs.old to calculate old_index.

Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
1 file changed