drivers: flash: flash_flexspi_nor: support SFDP probe

Support SFDP probe in flexspi nor driver. This probe will allow the
flash driver to dynamically configure quad spi flashes for 1-4-4 mode,
expanding the flash chips supported with this driver.

The following data is read from the SFDP header:
- quad enable method
- fast read command (1-4-4 is maximum supported)

Fixes #55379

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>