pinctrl: pinctrl-tps6594: make tps65224_muxval_remap and tps6594_muxval_remap as...

pinctrl: pinctrl-tps6594: make tps65224_muxval_remap and tps6594_muxval_remap as static to fix sparse warning

pinctrl: tps6594: Fix sparse warning.

warning: symbol 'tps65224_muxval_remap' was not declared. Should it be static?
warning: symbol 'tps6594_muxval_remap' was not declared. Should it be static?

Signed-off-by: Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202405111523.9yt759uX-lkp@intel.com/
Link: https://lore.kernel.org/r/0109018f85002ae1-6fb831b2-74c2-4559-98f1-a3ef25e72558-000000@ap-south-1.amazonses.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>