B4860QDS: Enable SFP or AMC on basis of hwconfig string

SerDes2 lanes EFGH either go to SFP or AMC riser card slot2.
By default AMC will be configured even if no hwconfig is specified.

To enable XFI via SFP use the below hwconfig:
	fsl_b4860_serdes2:sfp_amc=sfp

Signed-off-by: Suresh Gupta <suresh.gupta@freescale.com>
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@ffeescale.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
1 file changed