ENGR00252418 imx6: add fuse check for available devices

ENGR00252418 imx6: add fuse check for available devices

Since device availability may be different on the same SoC,
so we add fuse check for the supported device before we really
adding the device to the kernel.
This may avoid kernel crash once the CPU at the slot are changed to
a different one which with different device available but the kernel is
the same one.

Reviewed-by: Jason Liu <r64343@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Dong Aisheng <b29396@freescale.com>