arm: tegra: board support for sensors

arm: tegra: board support for sensors

Added support for BMP180 pressure sensor and auto-detection of AKM89XX compass.

Change-Id: I3e45250e7b4e2887d79bd62a402ddcdc0d057b92
Signed-off-by: Erik Lilliebjerg <elilliebjerg@nvidia.com>
Reviewed-on: http://git-master/r/211081
(cherry picked from commit 00811e96be2c6ac4139a6b24b39cf44ddcf20bda)
Reviewed-on: http://git-master/r/216710
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Xiaohui Tao <xtao@nvidia.com>
Tested-by: Xiaohui Tao <xtao@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>