msm: clock-8960: Disable hardware clock gating for vcap_ahb_clk

Hardware doesn't have the support on the auto gating of vcap_ahb_clk.
Therefore, disable this feature in this patch.

Change-Id: Id64f074f29593bfe0ea1fb1d2828b1f0699b5c47
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>