thermal: qcom: ipq5018: make ops_ipq5018 struct static

Fix a sparse warning by making the ops_ipq5018 struct static.

Fixes: 04b31cc5 ("thermal/drivers/qcom/tsens: Add support for IPQ5018 tsens")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202505202356.S21Sc7bk-lkp@intel.com/


Signed-off-by: George Moussalem <george.moussalem@outlook.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://patch.msgid.link/20250522-ipq5018-tsens-sparse-v1-1-97edaaaef27c@outlook.com


Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>