Removing redundant accelerometer events

Removing redundant accelerometer events

ACCELEROMETER_BASE_DATA_SET and ACCELEROMETER_EVENT_RAW_DATA_REPORT_ON_TIME were the same
ACCELEROMETER_BASE_DATA_SET has been removed.

ACCELEROMETER_BASE_DATA_SET was used for polling events and ACCELEROMETER_EVENT_RAW_DATA_REPORT_ON_TIME was used for event driven
Since both these represent the same accelerometer event, DATA_SET type has been removed.

And ACCELEROMETER_EVENT_RAW_DATA_REPORT_ON_TIME has been renamed to ACCELEROMETER_RAW_DATA_EVENT to make it simpler.

The change has been tested on rd-pq device for all sensord API and all API were found to be working.

Change-Id: I7602335045a1847b9ea3e58247b6ddcc82bbda7f