driver: add rk_keylad driverChange-Id: I8dbaab5f45522a264866a608e28064133343c860Signed-off-by: Troy Lin <troy.lin@rock-chips.com>
dm: add keylad uclassChange-Id: I906f4281ebf5f1f4cd6421870980ba76833bc00cSigned-off-by: Troy Lin <troy.lin@rock-chips.com>