dt-bindings: memory-controllers: ti,gpmc: fix typo in description

Fix typo where 'GPMC driver implements an interrupt controller' instead of
'and interrupt controller'

Signed-off-by: Colin Foster <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Rob Herring <[e-mail]>

Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml

···
 
   interrupt-controller:
     description: |
-      The GPMC driver implements and interrupt controller for
+      The GPMC driver implements an interrupt controller for
       the NAND events "fifoevent" and "termcount" plus the
       rising/falling edges on the GPMC_WAIT pins.
       The interrupt number mapping is as follows