Radxa ROCK Pi S have optional onboard SD NAND on board revision v1.1,
v1.2 and v1.3, revision v1.5 changed to use optional onboard eMMC.

The optional SD NAND typically fails to initialize:

  mmc_host mmc0: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, actual 400000HZ div = 0)
  mmc0: error -110 whilst initialising SD card
  mmc_host mmc0: Bus speed (slot 0) = 300000Hz (slot req 300000Hz, actual 300000HZ div = 0)
  mmc0: error -110 whilst initialising SD card
  mmc_host mmc0: Bus speed (slot 0) = 200000Hz (slot req 200000Hz, actual 200000HZ div = 0)
  mmc0: error -110 whilst initialising SD card
  mmc_host mmc0: Bus speed (slot 0) = 100000Hz (slot req 100000Hz, actual 100000HZ div = 0)
  mmc0: error -110 whilst initialising SD card

Add pinctrl and cap-sd-highspeed to fix SD NAND initialization. Also
drop bus-width and mmc-hs200-1_8v to fix eMMC initialization on the new
v1.5 board revision, only 3v3 signal voltage is used.

Fixes: 2e04c25b ("arm64: dts: rockchip: add ROCK Pi S DTS support")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://lore.kernel.org/r/20240521211029.1236094-4-jonas@kwiboo.seSigned-off-by: Heiko Stuebner <heiko@sntech.de>