linux-imx

MA-16457-3 change mount device and provide boot device info

When dynamic partition feature is enabled, there will be no uevent for the
dynamic partition. the "mount device" info should only be the partition
name. so the value "dev" in fstab should be modified.

since "dev" value is modified, it does not contain boot device info,
"boot_devices" is used to provide the boot device info.

The build system can still build images without dynamic partition
feature, just change a variable value in device/fsl git, here some new
dts file are provided to support the condition that dynamic partition
feature are not enabled, fstab node in this files are used to override
the one in common files.

Change-Id: I5040b40d9a58c1a85ae5b7d887e6e8e6a04c32ba
Signed-off-by: faqiang.zhu <faqiang.zhu@nxp.com>