fix(p4_spi_gpios): Use IO_MUX for P4 SPI, unless it is dev board

- updated SPI FD documentation on P4, included note on power domains
- updated Kconfig for SPI-FD, SPI-HD, SDIO, UART
- used IO_MUX GPIOs for P4 if no development board selected
- updated Kconfig to support C2 on dev board
- added SDIO config for P4-C5 Core Board

Author: SohKamYung-Espressif