staging/rdma/hfi1: Disable thermal polling before sensor initialization

During driver load the thermal sensor needs to be reset prior
to initialization of the sensor. This prevents a possible sensor lock
up which can cause the wrong temperature value to be reported.
This fix leads to remove disabling thermal polling from
reset_asic_csrs() function.

Reviewed by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Jareer Abdel-Qader <jareer.h.abdel-qader@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>