Add support to set function to "wcn_sw_ctrl" & set mpm_wake_set for SW_CTRL GPIO so that, when this GPIO goes high, PDC get interrupted and TCS sequence (which enables RF_CLK) can be started. Change-Id: Ifdff31f6ad6286a32c3a6f8b500cb6b55b97eb42 CRs-Fixed: 4020424