SpiFlash driver configuration
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Folowing PCDs for spi flash driver configuration must be set properly:
gMarvellTokenSpaceGuid.PcdSpiFlashAddressCycles
Size of SPI flash address in bytes (3 or 4)
gMarvellTokenSpaceGuid.PcdSpiFlashEraseSize
Size of minimal erase block in bytes
gMarvellTokenSpaceGuid.PcdSpiFlashPageSize
Size of SPI flash page
gMarvellTokenSpaceGuid.PcdSpiFlashId
Id of SPI flash
gMarvellTokenSpaceGuid.PcdSpiFlashPollCmd
Spi flash polling flag