msm: clock-8916: Move 8916 clock driver to drivers/clk/qcom

Architectural changes in the ARM Linux kernel require moving clock
drivers to drivers/clk/qcom.

Change-Id: Id819b00d12bff071e86dbe02570b655b3e5d7b40
Signed-off-by: Junjie Wu <junjiew@codeaurora.org>