spi: bitbang: Grammar s/make to make/to make/

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/spi/spi-bitbang-txrx.h

···
  *
  * Since this is software, the timings may not be exactly what your board's
  * chips need ... there may be several reasons you'd need to tweak timings
- * in these routines, not just make to make it faster or slower to match a
+ * in these routines, not just to make it faster or slower to match a
  * particular CPU clock rate.
  */