Merge tag 'sh-pfc-for-v5.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v5.3

  - Add more checks for pinctrl table validation,
  - Add TPU (Timer Pulse Unit / PWM) pin groups on R-Car H3, M3-W, and
    M3-N,
  - Rework description of pins without GPIO functionality,
  - Small fixes and cleanups.