dt-bindings: mtd: nand-controller: Fix a comment in the examples

stable inclusion
from stable-v5.10.110
commit 648ab1dcc119deeaa34292e26b31180e12f6ca05
bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=648ab1dcc119deeaa34292e26b31180e12f6ca05

--------------------------------

commit 0e7f1b55 upstream.

The controller properties should be in the controller 'parent' node,
while properties in the children nodes are specific to the NAND
*chip*. This error was already present during the yaml conversion.

Fixes: 2d472aba ("mtd: nand: document the NAND controller/NAND chip DT representation")
Signed-off-by: NMiquel Raynal <miquel.raynal@bootlin.com>
Acked-by: NRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/linux-mtd/20211216111654.238086-3-miquel.raynal@bootlin.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NYu Liao <liaoyu15@huawei.com>
Reviewed-by: NWei Li <liwei391@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

Documentation/devicetree/bindings/mtd/nand-controller.yaml

@@ -174,6 +174,6 @@ examples:
         nand-ecc-mode = "soft";
         nand-ecc-algo = "bch";
 
-        /* controller specific properties */
+        /* NAND chip specific properties */
       };
     };