AKM sensor code for AK8975

This package includes the following components.

1) Sensor Control Program (AK8975_FS/akmdfs)
   Source code of Daemon program to control sensor and to output
   calculated value.

2) Sensor HAL Module (AK8975_FS/libsensors)
   This is a sample implementation of HAL module, which can be
   connected to SensorManager.

Change-Id: If68fdbfb5c4133a34f48445a5a1769f2f6eab771
Signed-off-by: Tsuyoshi Masuda <masuda.tv@om.asahi-kasei.co.jp>
Merge "AKM sensor code for AK8975"
fix build. new sensor hal header.

Change-Id: I32218dd3008588b3afb520ba75fa6b20eab23a5a
fix build. new sensor hal header.

Change-Id: Ie9935c7645d6047e3e4c2634672a01e3e85f9fd9
fix build. new sensor hal header.

Change-Id: Id4b20a7f2b810bcfdda922fd6c7bd0bc4a2d775c