powerpc/T104xD4RDB: Add T104xD4RDB boards support

T1040D4RDB is a Freescale reference board that hosts the T1040 SoC.
    T1040D4RDB is re-designed T1040RDB board with following changes :
    - Support of DDR4 memory
    - Support of 0x66 serdes protocol which can support following interfaces
        - 2 RGMII's on DTSEC4, DTSEC5
        - 1 SGMII on DTSEC3
    - Support of QE-TDM

    Similarily T1042D4RDB is a Freescale reference board that hosts the T1040
    SoC. T1042D4RDB is re-designed T1042RDB board with following changes :
    - Support of DDR4 memory
    - Support for 0x86 serdes protocol which can support following interfaces
        - 2 RGMII's on DTSEC4, DTSEC5
        - 3 SGMII on DTSEC1, DTSEC2 & DTSEC3
    - Support of DIU

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com>
Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/t104xrdb/MAINTAINERS b/board/freescale/t104xrdb/MAINTAINERS
index 13d9be9..32e044f 100644
--- a/board/freescale/t104xrdb/MAINTAINERS
+++ b/board/freescale/t104xrdb/MAINTAINERS
@@ -6,7 +6,13 @@
 F:	configs/T1040RDB_defconfig
 F:	configs/T1040RDB_NAND_defconfig
 F:	configs/T1040RDB_SPIFLASH_defconfig
+F:	configs/T1040D4RDB_defconfig
+F:	configs/T1040D4RDB_NAND_defconfig
+F:	configs/T1040D4RDB_SPIFLASH_defconfig
 F:	configs/T1042RDB_defconfig
+F:	configs/T1042D4RDB_defconfig
+F:	configs/T1042D4RDB_NAND_defconfig
+F:	configs/T1042D4RDB_SPIFLASH_defconfig
 F:	configs/T1042RDB_PI_defconfig
 F:	configs/T1042RDB_PI_NAND_defconfig
 F:	configs/T1042RDB_PI_SPIFLASH_defconfig
@@ -15,6 +21,8 @@
 #M:	-
 S:	Maintained
 F:	configs/T1040RDB_SDCARD_defconfig
+F:	configs/T1040D4RDB_SDCARD_defconfig
+F:	configs/T1042D4RDB_SDCARD_defconfig
 F:	configs/T1042RDB_PI_SDCARD_defconfig
 
 T1040RDB_SECURE_BOOT BOARD