MIPS: Alchemy: MMC for DB1100

This patch hooks up the 2 MMC sockets on the DB1100 board.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2873/
Patchwork: https://patchwork.linux-mips.org/patch/2920/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>