spi: spi-mem: Fix typo (of -> or)

In this instance, "or" makes more sense than "of", so I guess that "or"
was intended and "of" was a typo.
Signed-off-by: NJonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20221008151459.1421406-1-j.neuschaefer@gmx.netSigned-off-by: NMark Brown <broonie@kernel.org>

include/linux/spi/spi-mem.h

@@ -225,7 +225,7 @@ static inline void *spi_mem_get_drvdata(struct spi_mem *mem)
 /**
  * struct spi_controller_mem_ops - SPI memory operations
  * @adjust_op_size: shrink the data xfer of an operation to match controller's
- *		    limitations (can be alignment of max RX/TX size
+ *		    limitations (can be alignment or max RX/TX size
  *		    limitations)
  * @supports_op: check if an operation is supported by the controller
  * @exec_op: execute a SPI memory operation