arm64: dts: imx8mm/q: Fix pad control of SD1_DATA0

Fix address of the pad control register
(IOMUXC_SW_PAD_CTL_PAD_SD1_DATA0) for SD1_DATA0_GPIO2_IO2.  This seems
to be a typo but it leads to an exception when pinctrl is applied due to
wrong memory address access.

Signed-off-by: Oliver Stäbler <oliver.staebler@bytesatwork.ch>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Fixes: c1c9d413 ("dt-bindings: imx: Add pinctrl binding doc for imx8mm")
Fixes: 748f908c ("arm64: add basic DTS for i.MX8MQ")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>