ARM: dts: imx: align SPI NOR node name with dtschema

stable inclusion
from stable-v5.10.144
commit a381cac2ab080944893b096570dd4b324be87e26
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0V7

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a381cac2ab080944893b096570dd4b324be87e26



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[ Upstream commit ba9fe460 ]

The node names should be generic and SPI NOR dtschema expects "flash".

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Stable-dep-of: af7d78c9 ("ARM: dts: imx6qdl-kontron-samx6i: fix spi-flash compatible")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>