See Freescale App Note 4493 for more information about
this erratum.
+ CONFIG_A003399_NOR_WORKAROUND
+ Enables a workaround for IFC erratum A003399. It is only
+ requred during NOR boot.
+
CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY
This is the value to write into CCSR offset 0x18600