ERROR: modpost: "__bad_ndelay" [drivers/iio/adc/nxp-sar-adc.ko] undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c369299895a591d96745d6492d4888259b004a9e
commit: 4434072a893e4864519c167947083ff3e4cc2d95 iio: adc: Add the NXP SAR ADC support for the s32g2/3 platforms
date:   3 months ago
config: x86_64-buildonly-randconfig-002-20260324 (https://download.01.org/0day-ci/archive/20260324/202603240945.I1IElCnZ-lkp@xxxxxxxxx/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260324/202603240945.I1IElCnZ-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603240945.I1IElCnZ-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__bad_ndelay" [drivers/iio/adc/nxp-sar-adc.ko] undefined!

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