clk: qcom: Handle the clamp_io assert/deassert sequence

Add a flag to mark gdscs which need to support the clamp deassert/assert
before and after the gdsc enable/disable

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>