pinctrl: qcom: sdm670-lpass-lpi: label variables as static

pinctrl: qcom: sdm670-lpass-lpi: label variables as static

These variables are local to the driver and have no need to be exported
to the global namespace. Label them as static to fix compiler warnings.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202604080950.Mvm8aN0a-lkp@intel.com/
Fixes: 9826035a75da ("pinctrl: qcom: add sdm670 lpi tlmm")
Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>