ecs1030: move example and fix doc

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
README.md: add ECS1030 sensor to list

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
lpd8806: fix typo

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
examples: fix naming of examples

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>