armv8: ls1028a: Updated serdes configuration for 0x13BB

In SerDes protocol 0x13BB, lane C was erroneously assigned
to PCIE1, this is now updated to PCIE2

Fixes: 36f50b75 ("armv8: ls1028a: Add other serdes
		     protocal support")

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>