powerpc/mpc85xx:Put errata number for T104x NAND boot issue

When device is configured to load RCW from NAND flash IFC_A[16:31] are driven
low after RCW loading. Hence Devices connected on IFC_CS[1:7] and using
IFC_A[16:31] lines are not accessible.

Workaround is already in-place.
Put the errata number to adhere errata handling framework.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/README b/README
index 66770b6..0c892d8 100644
--- a/README
+++ b/README
@@ -409,6 +409,10 @@
 		Enables a workaround for IFC erratum A003399. It is only
 		requred during NOR boot.
 
+		CONFIG_A008044_WORKAROUND
+		Enables a workaround for T1040/T1042 erratum A008044. It is only
+		requred during NAND boot and valid for Rev 1.0 SoC revision
+
 		CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY
 
 		This is the value to write into CCSR offset 0x18600