spi: airoha: remove unnecessary restriction length
The "length < 160" restriction is not needed because airoha_snand_write_data()
and airoha_snand_read_data() will properly handle data transfers above
SPI_MAX_TRANSFER_SIZE.
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20251012121707.2296160-3-mikhail.kshevetskiy@iopsys.eu
Signed-off-by: Mark Brown <broonie@kernel.org>