STPK-1429 Adjust types of a couple of sampling rate variables
STPK-1429 Adjust types of a couple of sampling rate variables

Those are not necessarily integers, so use a proper type.

Issue: STPK-1429

Change-Id: I66be97150afb31af0d9aa8b42f9ba8dbab35c0b4
Signed-off-by: Patrick Porlan <6b7a5b9114e07d350ffba0c179039885a7e82794@intel.com>

01org/android-iio-sensors-hal,01org/android-iio-sensors-hal