Fixes wrong bits shift operation in the rapl_write_data_raw function, which
might cause overridding bits outside of the mask.

For example, writing new TIME_WINDOW1 value can override POWER_LIMIT1.
Signed-off-by: NAdam Lessnau <adam.lessnau@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>