net: wireless: ath: wcn36xx: Move setup code to wcnss_ctrl

The setup code should not be part of the wcn36xx driver but rather the
wcnss_ctrl driver, as it relates to the combo chip and not just the wifi
core.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
soc: qcom: Implement wcnss_ctrl driver

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>