T1040RDB has been upgraded to support new DDR ie. MTA9ADF1G72AZ-3G2, 8GB.
So adding support of new DDR part by updating board_specific_parameters
udimm0.
Signed-off-by: Peng Ma <peng.ma@nxp.com> Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>