ARM: dts: bcm283x: Fix up MMC node names

stable inclusion
from stable-5.10.53
commit 4bc03e321f2a6ee45c07b477245e480f8b6d9756
bugzilla: 175574 https://gitee.com/openeuler/kernel/issues/I4DTUX

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4bc03e321f2a6ee45c07b477245e480f8b6d9756



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[ Upstream commit f230c323 ]

Fix the node names for the MMC/SD card controller to conform
to the standard node name mmc@..

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1622981777-5023-2-git-send-email-stefan.wahren@i2se.com


Signed-off-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Acked-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>