nds32: Change of NDS32 Custodian

Signed-off-by: Andes <uboot@andestech.com>
Cc: Macpaul Lin <macpaul@gmail.com>
Cc: Kuan-Yu Kuo <ken.kuoky@gmail.com>
nds32: introduce DMA allocation API

U-Boot does not compile for the adp-ag101 boards since
commit a8f9cd1893bef05b92f63242228607b45821c4a7
(net: update FTGMAC100 for MMU/D-cache support)

The driver assumes that the DMA allocation API are provided by all
architectures. This is not the case for nds32 and it causes a
build error. This patch adds DMA allocation API to avoid the errors.

Signed-off-by: Kuan-Yu Kuo <ken.kuoky@gmail.com>
Cc: Macpaul Lin <macpaul@gmail.com>
Cc: Andes <uboot@andestech.com>
Signed-off-by: Andes <uboot@andestech.com>
nds32: fix the missing COBJS-y change

There is a missing in previous
commit 951344b778d6ac67b94011d942a5a55da7202027
(nds32: Convert Makefiles to use COBJS-y style)
will cause compile error.

Signed-off-by: Kuan-Yu Kuo <ken.kuoky@gmail.com>
Cc: Macpaul Lin <macpaul@gmail.com>
Cc: Andes <uboot@andestech.com>
Signed-off-by: Andes <uboot@andestech.com>