powerpc/p1022ds: Add support for NAND and NAND boot using SPL

Add defines needed to access NAND, remove second flash bank that is
actually connected to NAND.

Add nand booting support for P1022DS with hardcoded DDR config using
SPL framework from 2011

Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Signed-off-by: Jiang Yutang <b14898@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/boards.cfg b/boards.cfg
index 8b7933f..5d78064 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -811,6 +811,8 @@
 P1021RDB-PC_SDCARD           powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,SDCARD
 P1021RDB-PC_SPIFLASH         powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,SPIFLASH
 P1022DS                      powerpc     mpc85xx     p1022ds             freescale
+P1022DS_NAND                 powerpc     mpc85xx     p1022ds             freescale	-	    P1022DS:NAND
+P1022DS_36BIT_NAND           powerpc     mpc85xx     p1022ds             freescale	-	    P1022DS:36BIT,NAND
 P1022DS_SPIFLASH             powerpc     mpc85xx     p1022ds             freescale	-	    P1022DS:SPIFLASH
 P1022DS_36BIT_SPIFLASH       powerpc     mpc85xx     p1022ds             freescale	-	    P1022DS:36BIT,SPIFLASH
 P1022DS_SDCARD               powerpc     mpc85xx     p1022ds             freescale	-	    P1022DS:SDCARD