arm64: dts: visconti: Update the clock providers for SPI

Remove fixed clock and source common clock for SPI.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://lore.kernel.org/r/20220510015229.139818-5-nobuhiro1.iwamatsu@toshiba.co.jp/

arm64: dts: visconti: Update the clock providers for watchdog timer

Remove fixed clock and source common clock for watchdog timer.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://lore.kernel.org/r/20220510015229.139818-4-nobuhiro1.iwamatsu@toshiba.co.jp/

arm64: dts: visconti: Update the clock providers for I2C

Replace I2C clock with common clock framework.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Link: https://lore.kernel.org/r/20220510015229.139818-3-nobuhiro1.iwamatsu@toshiba.co.jp/

arm64: dts: visconti: Add DTS for the VisROBO board

This board consists of two boards:
the SoM board (VRC SoM) with the SoC on board, and the board for I/O (VRB).

The functions of each board supported by this update are as follows:
- VRC SoM
- WDT
- GPIO
- SDCard (SPI-MMC mode)
- I2C x1
- VRB board
- VRC SoM
- UART x2
- Ethernet phy

Signed-off-by: Yuji Ishikawa <yuji2.ishikawa@toshiba.co.jp>
Link: https://lore.kernel.org/r/20211014092703.15251-4-yuji2.ishikawa@toshiba.co.jp
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>