powerpc/t104xrdb: Set DDR ODT to 75ohm

DDR-ODT require cfg_dram_type switch set properly as per DDR type.
T1040RDB, T1042RDB boards have DDR3L type DDR, so cfg_dram_type
should be set to OFF for DDR3L
Update t104xrdb/README for switch setting

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/t104xrdb/README b/board/freescale/t104xrdb/README
index a0f5fa9..ac95b5e 100644
--- a/board/freescale/t104xrdb/README
+++ b/board/freescale/t104xrdb/README
@@ -272,15 +272,15 @@
 ===============
 NAND boot SW setting:
 SW1: 10001000
-SW2: 00111001
+SW2: 00111011
 SW3: 11110001
 
 SPI boot SW setting:
 SW1: 00100010
-SW2: 10111001
+SW2: 10111011
 SW3: 11100001
 
 SD boot SW setting:
 SW1: 00100000
-SW2: 00111001
+SW2: 00111011
 SW3: 11100001