rockchip: rk3328: Fix loading FIT from SD-card when booting from eMMC

rockchip: rk3328: Fix loading FIT from SD-card when booting from eMMC

When RK3328 boards run SPL from eMMC and fail to load FIT from eMMC due
to it being missing or checksum validation fails there is a fallback to
read FIT from SD-card. However, without proper pinctrl configuration
reading FIT from SD-card will fail:

  U-Boot SPL 2024.04-rc1 (Feb 05 2024 - 22:18:22 +0000)
  Trying to boot from MMC1
  mmc_load_image_raw_sector: mmc block read error
  Trying to boot from MMC2
  Card did not respond to voltage select! : -110
  spl: mmc init failed with error: -95
  Trying to boot from MMC1
  mmc_load_image_raw_sector: mmc block read error
  SPL: failed to boot from all boot devices
  ### ERROR ### Please RESET the board ###

Fix this by tagging related emmc and sdmmc pinctrl nodes with bootph
props. Also sort and move common nodes shared by all boards to the SoC
u-boot.dtsi.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>