phy: qcom: use struct_size instead of sizeof

Use struct_size() to get the accurate size of `clk_hw_onecell_data`
with a variable size array, instead of sizeof(data) to get the size
of a pointer.

Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Fixes: f199223c ("phy: qcom: Introduce new eDP PHY driver")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211209032114.9416-1-guozhengkui@vivo.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>