msm: clock-8226: Driver controls oxili_axi_clk

The kgsl driver now controls the oxili_axi_clk, and no longer relies
on the clock driver to enable it at the appropriate times.

Change-Id: I28b796c1889c3c19f66c8ac7035038e38b142c3d
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>