input: touchscreen: add raydium touch driver

Supports Raydium WT030 controllers.

Change-Id: I7a98769b1e4f410e8f413a2dcc5bbc57e25f88d0
Signed-off-by: gary-rad-ic <gary.wu@rad-ic.com>
Git-commit: b18c8702a86c87acc232f1d535e208228b551883
Git-repo: https://source.codeaurora.org/quic/la/kernel/msm-4.9/commit/?h=gary-rad-ic/CAF


[vvalluru@codeaurora.org: removed LICENSE, README.md and updated commit text]
Signed-off-by: Venkata Prahlad Valluru <vvalluru@codeaurora.org>