[dev] add ssbi driver

https://www.codeaurora.org/cgit/quic/la/kernel/lk/commit/?h=master&id=e25e3d32912aea8dfdda1d2797da924ed5dfe4ee
[dev][ssbi] fix warnings
[ðev][keys][gpio_keypad] update from CAF

https://www.codeaurora.org/cgit/quic/la/kernel/lk/commit/?h=master&id=e25e3d32912aea8dfdda1d2797da924ed5dfe4ee