clock-a7/krait: Change initcall level for early probe

Requirement to probe CPU clock drivers and register msm-cpufreq early
mandates initcall level changes in these drivers. Order among generic
clock driver, CPU clock driver and msm-cpufreq is unchanged, but
CPU clock drivers and msm-cpufreq are moved to earlier level to meet
new requirement.

Change-Id: I91c615795e2b114059d34f41b2f562a3e394e341
Signed-off-by: Junjie Wu <junjiew@codeaurora.org>