sf: Add CONFIG_SPI_FLASH_USE_4K_SECTORS in spi_flash

sf: Add CONFIG_SPI_FLASH_USE_4K_SECTORS in spi_flash

Add CONFIG_SPI_FLASH_USE_4K_SECTORS in spi_flash code from header file.

Cc: Simon Glass <[email protected]>
Cc: Bin Meng <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Siva Durga Prasad Paladugu <[email protected]>
Cc: Vignesh R <[email protected]>
Cc: Mugunthan V N <[email protected]>
Signed-off-by: Jagan Teki <[email protected]>