powerpc/b4860: fix for Serdes connectivity to SFP's

Crossbar switches were wrongly programmed to
route the CPRI lanes to SFP as the connectivity table
was not correct.
Modified it correctly for SFPs connections.

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>