libhardware: sensors: update multi hal to support 64bit builds

To get multi hal working on both 32 & 64 bit targets,
removing hardcoded paths & checks in multi HAL.

Sensor HAL libs must be installed path that is available through
/system/lib & /system/vendor/lib for 32-bit targets.
/system/lib64 & /system/vendor/lib64 for 64-bit targets.

Change-Id: Ib1c1f25f08855c4584d53cc04fbe82a3a768b180
2 files changed