platform: Sync with CAF kk_3.5

*Retained LGE patches to these drivers

Signed-off-by: Sultanxda <sultanxda@gmail.com>
input: touchscreen: Remove unused driver not present in CAF kk_3.5
usb: dwc3: Sync with CAF kk_3.5

*Retained patches from LGE for slimport & USB OTG
*Sultanxda: removed dwc3_msm_update_ref_clk from dwc3-msm to get USB OTG working

Signed-off-by: Sultanxda <sultanxda@gmail.com>