sensorservice: Register orientation sensor if HAL doesn't provide it

 * In KitKat and on most Samsung devices, the orientation sensor is
   not getting registered, and makes the compass non-working in a lot
   of apps. This patch enables the sensor for such devices.

Change-Id: I0ebba72ec4aa2cfa02c21a6daff0c356c6793fd0
(cherry picked from commit 98fa6f1152da759ef3eaf36cb16e0aaf2013376a)
exynos4: getphys implementation on buffermanager for samsung omx

Change-Id: Iee665f56aaf601479d796703db983ca5fce9c5c3
ui: exynos4: getphys is common

Change-Id: I1dc9c2ced0700072e7c30c8435676873b10c7026