tag: add support for ATAG_ALS tag
lightsensor: add some lightsensor framework  headers
drivers: add isl29028 and isl29029 drivers
audio:amp: add tpa2051d3 driver, add tpa2051d3 in Kbuild, needed for rom building
add board-ext-htc.h where all htc additions should be
htc: forgot htc_bdaddress header