dt-bindings: mmc: fsl-imx-esdhc: change the pinctrl-names rule

Change the pinctrl-names rule to cover all cases.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1629373938-9226-1-git-send-email-haibo.chen@nxp.com


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>