ARM: dts: imx: add usb alias

stable inclusion
from stable-v5.10.190
commit f1c928496d2a9e9a5567a6bff04d952e284d9e68
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I928UI

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f1c928496d2a9e9a5567a6bff04d952e284d9e68



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[ Upstream commit 5c8b3b8a ]

Add usb alias for bootloader searching the controller in correct order.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Stable-dep-of: ee70b908 ("ARM: dts: nxp/imx6sll: fix wrong property name in usbphy node")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>