[U-Boot] [v4] new SPL support for IFC based Feescale platforms

This patch series ports existing Freescale's IFC based platforms/boards to new SPL based architecture. It is done to support NAND boot. It contains following patches:

1. powerpc/mpc85xx:No NOR boot,do not compile IFC errata A003399

2. powerpc/mpc85xx: new SPL support for IFC NAND

3. board/p1010rdb:Add NAND boot support using new SPL format

4. board/bsc9131rdb:Add NAND boot support using new SPL format

5. board/bsc9132qds:Add NAND boot support using new SPL format