clk: qcom: gcc-bengal: Remove the throttle clocks

Clocks that are sourcing to throttle block are required to be
controlled by RPM. Remove all control of them from the HLOS
clock driver.

Change-Id: Iec54ce7b034ac0fc1eda64459fce1efb589a9f21
Signed-off-by: Naveen Yadav <naveenky@codeaurora.org>