msm: clock-8960: Add clock initialization support for 8930ab

Clock driver has initialization functions to do some one time
clock configurations e.g. enable/disable clock dynamic gating.
Add this support for 8930ab. Note that the dynamic clock gating
is disabled and will be added once it is verified on 8930ab.

Change-Id: I927255dccfd6ffc22067628c6ab2cc04bd15e179
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>