ARM: dts: imx6qdl-udoo: Properly describe the SD card detect

stable inclusion
from stable-v5.10.101
commit 108868dae2ee352764c3e446450368d4fa4bf3d3
bugzilla: https://gitee.com/openeuler/kernel/issues/I5669Z

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=108868dae2ee352764c3e446450368d4fa4bf3d3



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[ Upstream commit 993d6614 ]

GPIO7_IO00 is used as SD card detect.

Properly describe this in the devicetree.

Fixes: 40cdaa54 ("ARM: dts: imx6q-udoo: Add initial board support")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Reviewed-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>