gateware/spi_flash: Add support for reading little-endian data.
gateware/spi_flash: Add support for reading little-endian data.

mithro/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware