input: touchscreen: Add STMicroelectronics Touchscreen driver

This is the reference source driver code from ST Microelectronics.

Change-Id: I7319385daedf19761428fbd5542069d63f7192d5
Signed-off-by: chenx <chenxiang0527@thundersoft.com>
Git-commit: 0f965cac4d6bf76bcd7b6221228b814532e59463
Git-repo: https://source.codeaurora.org/external/thundersoft/ihvjointlab/sensor-driver/log/?h=STMicroelectronics_ctp_V4.1.0_2019


Signed-off-by: Fei Mao <feim1@codeaurora.org>