power_hikey: Simplify init function by pulling calculate_max_freq() in

Simplify the number of functions by inlining the
calculate_max_freq logic into the init function.

Change-Id: I5800d2b0b6e0d5db83337b5549bf1a7e134fa65e
Signed-off-by: John Stultz <john.stultz@linaro.org>
1 file changed